id stringlengths 24 24 | question stringlengths 1 270 | answer stringlengths 1 239 | documents listlengths 1 1 |
|---|---|---|---|
56f9e1b39b226e1400dd15e0 | Who developed Transformator in 1958? | the Soviet Union | [
"High-definition_television\n\nIn 1958, the Soviet Union developed Тransformator (Russian: Трансформатор, meaning Transformer), the first high-resolution (definition) television system capable of producing an image composed of 1,125 lines of resolution aimed at providing teleconferencing for military command. It wa... |
56f9e1b39b226e1400dd15e1 | How many lines of resolution could an image using the Transformator system have? | 1,125 | [
"High-definition_television\n\nIn 1958, the Soviet Union developed Тransformator (Russian: Трансформатор, meaning Transformer), the first high-resolution (definition) television system capable of producing an image composed of 1,125 lines of resolution aimed at providing teleconferencing for military command. It wa... |
56f9e1b39b226e1400dd15e2 | What was the goal of the Transformator system? | providing teleconferencing for military command | [
"High-definition_television\n\nIn 1958, the Soviet Union developed Тransformator (Russian: Трансформатор, meaning Transformer), the first high-resolution (definition) television system capable of producing an image composed of 1,125 lines of resolution aimed at providing teleconferencing for military command. It wa... |
56f9e38a9e9bad19000a0b37 | In what year did NHK first develop consumer HD television with a 5:3 aspect ratio? | 1979 | [
"High-definition_television\n\nIn 1979, the Japanese state broadcaster NHK first developed consumer high-definition television with a 5:3 display aspect ratio. The system, known as Hi-Vision or MUSE after its Multiple sub-Nyquist sampling encoding for encoding the signal, required about twice the bandwidth of the e... |
56f9e38a9e9bad19000a0b38 | Who first developed consumer HD television with a 5:3 aspect ratio? | the Japanese state broadcaster NHK | [
"High-definition_television\n\nIn 1979, the Japanese state broadcaster NHK first developed consumer high-definition television with a 5:3 display aspect ratio. The system, known as Hi-Vision or MUSE after its Multiple sub-Nyquist sampling encoding for encoding the signal, required about twice the bandwidth of the e... |
56f9e38a9e9bad19000a0b39 | When did satellite test broadcasts of Hi-Vision start? | 1989 | [
"High-definition_television\n\nIn 1979, the Japanese state broadcaster NHK first developed consumer high-definition television with a 5:3 display aspect ratio. The system, known as Hi-Vision or MUSE after its Multiple sub-Nyquist sampling encoding for encoding the signal, required about twice the bandwidth of the e... |
56f9e38a9e9bad19000a0b3a | When did regular broadcasting of BS-9ch start? | November 25, 1994 | [
"High-definition_television\n\nIn 1979, the Japanese state broadcaster NHK first developed consumer high-definition television with a 5:3 display aspect ratio. The system, known as Hi-Vision or MUSE after its Multiple sub-Nyquist sampling encoding for encoding the signal, required about twice the bandwidth of the e... |
56f9e38a9e9bad19000a0b3b | When did regular testing of Hi-Vision start? | 1991 | [
"High-definition_television\n\nIn 1979, the Japanese state broadcaster NHK first developed consumer high-definition television with a 5:3 display aspect ratio. The system, known as Hi-Vision or MUSE after its Multiple sub-Nyquist sampling encoding for encoding the signal, required about twice the bandwidth of the e... |
56f9e4999e9bad19000a0b41 | When was the MUSE system demonstrated in the US first? | 1981 | [
"High-definition_television\n\nIn 1981, the MUSE system was demonstrated for the first time in the United States, using the same 5:3 aspect ratio as the Japanese system. Upon visiting a demonstration of MUSE in Washington, US President Ronald Reagan was impressed and officially declared it \"a matter of national in... |
56f9e4999e9bad19000a0b42 | What aspect ratio did the MUSE system use when demonstrated in 1981? | 5:3 | [
"High-definition_television\n\nIn 1981, the MUSE system was demonstrated for the first time in the United States, using the same 5:3 aspect ratio as the Japanese system. Upon visiting a demonstration of MUSE in Washington, US President Ronald Reagan was impressed and officially declared it \"a matter of national in... |
56f9e4999e9bad19000a0b43 | Which president declared it "a matter of national interest" to introduce HDTV to the US? | President Ronald Reagan | [
"High-definition_television\n\nIn 1981, the MUSE system was demonstrated for the first time in the United States, using the same 5:3 aspect ratio as the Japanese system. Upon visiting a demonstration of MUSE in Washington, US President Ronald Reagan was impressed and officially declared it \"a matter of national in... |
56f9e4999e9bad19000a0b44 | Which system was demonstrated in the US for the first time in 1981? | MUSE | [
"High-definition_television\n\nIn 1981, the MUSE system was demonstrated for the first time in the United States, using the same 5:3 aspect ratio as the Japanese system. Upon visiting a demonstration of MUSE in Washington, US President Ronald Reagan was impressed and officially declared it \"a matter of national in... |
56f9e4999e9bad19000a0b45 | Which system was demonstrated in Washington to President Ronald Reagan? | MUSE | [
"High-definition_television\n\nIn 1981, the MUSE system was demonstrated for the first time in the United States, using the same 5:3 aspect ratio as the Japanese system. Upon visiting a demonstration of MUSE in Washington, US President Ronald Reagan was impressed and officially declared it \"a matter of national in... |
56f9e6119b226e1400dd15f2 | Why did the FCC reject systems such as MUSE? | their higher bandwidth requirements | [
"High-definition_television\n\nSeveral systems were proposed as the new standard for the US, including the Japanese MUSE system, but all were rejected by the FCC because of their higher bandwidth requirements. At this time, the number of television channels was growing rapidly and bandwidth was already a problem. A... |
56f9e6119b226e1400dd15f3 | What was increasing and consuming a lot of bandwidth? | television channels | [
"High-definition_television\n\nSeveral systems were proposed as the new standard for the US, including the Japanese MUSE system, but all were rejected by the FCC because of their higher bandwidth requirements. At this time, the number of television channels was growing rapidly and bandwidth was already a problem. A... |
56f9e6119b226e1400dd15f4 | Who rejected systems such as MUSE as the new standard for the US? | the FCC | [
"High-definition_television\n\nSeveral systems were proposed as the new standard for the US, including the Japanese MUSE system, but all were rejected by the FCC because of their higher bandwidth requirements. At this time, the number of television channels was growing rapidly and bandwidth was already a problem. A... |
56f9e6119b226e1400dd15f5 | What was one of the requirements for a new standard system in the US? | had to be more efficient, needing less bandwidth | [
"High-definition_television\n\nSeveral systems were proposed as the new standard for the US, including the Japanese MUSE system, but all were rejected by the FCC because of their higher bandwidth requirements. At this time, the number of television channels was growing rapidly and bandwidth was already a problem. A... |
56f9e6119b226e1400dd15f6 | What was the existing system at the time? | NTSC | [
"High-definition_television\n\nSeveral systems were proposed as the new standard for the US, including the Japanese MUSE system, but all were rejected by the FCC because of their higher bandwidth requirements. At this time, the number of television channels was growing rapidly and bandwidth was already a problem. A... |
56f9e7ab9b226e1400dd15fc | What constraints kept HDTV from being widely adopted in the 90's? | technical and economic | [
"High-definition_television\n\nThe limited standardization of analog HDTV in the 1990s did not lead to global HDTV adoption as technical and economic constraints at the time did not permit HDTV to use bandwidths greater than normal television."
] |
56f9e7ab9b226e1400dd15fd | What was HDTV not permitted to do in the 90's? | use bandwidths greater than normal television | [
"High-definition_television\n\nThe limited standardization of analog HDTV in the 1990s did not lead to global HDTV adoption as technical and economic constraints at the time did not permit HDTV to use bandwidths greater than normal television."
] |
56f9e9128f12f3190062ffdf | How much more bandwith was required from early HDTV commercial experiments than an SD broadcast? | over four times | [
"High-definition_television\n\nEarly HDTV commercial experiments, such as NHK's MUSE, required over four times the bandwidth of a standard-definition broadcast. Despite efforts made to reduce analog HDTV to about twice the bandwidth of SDTV, these television formats were still distributable only by satellite."
] |
56f9e9128f12f3190062ffe0 | Efforts were made to reduce analog HDTV to how much of the bandwith of SDTV? | about twice | [
"High-definition_television\n\nEarly HDTV commercial experiments, such as NHK's MUSE, required over four times the bandwidth of a standard-definition broadcast. Despite efforts made to reduce analog HDTV to about twice the bandwidth of SDTV, these television formats were still distributable only by satellite."
] |
56f9e9128f12f3190062ffe1 | Despite the reduced bandwith, HDTV format still had to be distributed how? | by satellite | [
"High-definition_television\n\nEarly HDTV commercial experiments, such as NHK's MUSE, required over four times the bandwidth of a standard-definition broadcast. Despite efforts made to reduce analog HDTV to about twice the bandwidth of SDTV, these television formats were still distributable only by satellite."
] |
56f9e9128f12f3190062ffe2 | What kind of experiments required over four times the bandwith of a SDTV broadcast? | Early HDTV commercial experiments | [
"High-definition_television\n\nEarly HDTV commercial experiments, such as NHK's MUSE, required over four times the bandwidth of a standard-definition broadcast. Despite efforts made to reduce analog HDTV to about twice the bandwidth of SDTV, these television formats were still distributable only by satellite."
] |
56f9eaae8f12f3190062fff1 | How many broadcasters did Japan have sharing a single channel? | seven | [
"High-definition_television\n\nIn addition, recording and reproducing an HDTV signal was a significant technical challenge in the early years of HDTV (Sony HDVS). Japan remained the only country with successful public broadcasting of analog HDTV, with seven broadcasters sharing a single channel."
] |
56f9eaae8f12f3190062fff2 | Which country had successful public analog HDTV broadcasting? | Japan | [
"High-definition_television\n\nIn addition, recording and reproducing an HDTV signal was a significant technical challenge in the early years of HDTV (Sony HDVS). Japan remained the only country with successful public broadcasting of analog HDTV, with seven broadcasters sharing a single channel."
] |
56f9eaae8f12f3190062fff3 | What was particularly challenging in the early years of HDTV? | recording and reproducing an HDTV signal | [
"High-definition_television\n\nIn addition, recording and reproducing an HDTV signal was a significant technical challenge in the early years of HDTV (Sony HDVS). Japan remained the only country with successful public broadcasting of analog HDTV, with seven broadcasters sharing a single channel."
] |
56f9eaae8f12f3190062fff4 | What accomplishment in early HDTV did Japan have? | the only country with successful public broadcasting of analog HDTV | [
"High-definition_television\n\nIn addition, recording and reproducing an HDTV signal was a significant technical challenge in the early years of HDTV (Sony HDVS). Japan remained the only country with successful public broadcasting of analog HDTV, with seven broadcasters sharing a single channel."
] |
56f9ebe18f12f3190062fff9 | What does ITU-R stand for? | International Telecommunication Union's radio telecommunications sector | [
"High-definition_television\n\nSince 1972, International Telecommunication Union's radio telecommunications sector (ITU-R) had been working on creating a global recommendation for Analog HDTV. These recommendations, however, did not fit in the broadcasting bands which could reach home users. The standardization of ... |
56f9ebe18f12f3190062fffa | What does DVB stand for? | Digital Video Broadcasting | [
"High-definition_television\n\nSince 1972, International Telecommunication Union's radio telecommunications sector (ITU-R) had been working on creating a global recommendation for Analog HDTV. These recommendations, however, did not fit in the broadcasting bands which could reach home users. The standardization of ... |
56f9ebe18f12f3190062fffb | What is the DVB? | an alliance of broadcasters, consumer electronics manufacturers and regulatory bodies | [
"High-definition_television\n\nSince 1972, International Telecommunication Union's radio telecommunications sector (ITU-R) had been working on creating a global recommendation for Analog HDTV. These recommendations, however, did not fit in the broadcasting bands which could reach home users. The standardization of ... |
56f9ebe18f12f3190062fffc | What is the DVB's role? | develops and agrees upon specifications | [
"High-definition_television\n\nSince 1972, International Telecommunication Union's radio telecommunications sector (ITU-R) had been working on creating a global recommendation for Analog HDTV. These recommendations, however, did not fit in the broadcasting bands which could reach home users. The standardization of ... |
56f9ebe18f12f3190062fffd | Who standardizes HDTV specifications? | ETSI | [
"High-definition_television\n\nSince 1972, International Telecommunication Union's radio telecommunications sector (ITU-R) had been working on creating a global recommendation for Analog HDTV. These recommendations, however, did not fit in the broadcasting bands which could reach home users. The standardization of ... |
56f9ed16f34c681400b0beef | What did the Grand Alliance propose as the new standard for SDTV and HDTV? | ATSC | [
"High-definition_television\n\nDVB created first the standard for DVB-S digital satellite TV, DVB-C digital cable TV and DVB-T digital terrestrial TV. These broadcasting systems can be used for both SDTV and HDTV. In the US the Grand Alliance proposed ATSC as the new standard for SDTV and HDTV. Both ATSC and DVB we... |
56f9ed16f34c681400b0bef0 | Which standard were ATSC and DVB based on? | MPEG-2 | [
"High-definition_television\n\nDVB created first the standard for DVB-S digital satellite TV, DVB-C digital cable TV and DVB-T digital terrestrial TV. These broadcasting systems can be used for both SDTV and HDTV. In the US the Grand Alliance proposed ATSC as the new standard for SDTV and HDTV. Both ATSC and DVB we... |
56f9ed16f34c681400b0bef1 | Who created the standard for DVB-2, DVB-C, and DVB-T? | DVB | [
"High-definition_television\n\nDVB created first the standard for DVB-S digital satellite TV, DVB-C digital cable TV and DVB-T digital terrestrial TV. These broadcasting systems can be used for both SDTV and HDTV. In the US the Grand Alliance proposed ATSC as the new standard for SDTV and HDTV. Both ATSC and DVB we... |
56f9ed16f34c681400b0bef2 | Who proposed ATSC as the new standard for SDTV and HDTV? | the Grand Alliance | [
"High-definition_television\n\nDVB created first the standard for DVB-S digital satellite TV, DVB-C digital cable TV and DVB-T digital terrestrial TV. These broadcasting systems can be used for both SDTV and HDTV. In the US the Grand Alliance proposed ATSC as the new standard for SDTV and HDTV. Both ATSC and DVB we... |
56fa6e23f34c681400b0c0b7 | When did ITU-R start trying to work towards setting a single international HDTV standard? | 1983 | [
"High-definition_television\n\nIn 1983, the International Telecommunication Union's radio telecommunications sector (ITU-R) set up a working party (IWP11/6) with the aim of setting a single international HDTV standard. One of the thornier issues concerned a suitable frame/field refresh rate, the world already havin... |
56fa6e23f34c681400b0c0b8 | What did ITU-R start trying to do in 1983? | setting a single international HDTV standard | [
"High-definition_television\n\nIn 1983, the International Telecommunication Union's radio telecommunications sector (ITU-R) set up a working party (IWP11/6) with the aim of setting a single international HDTV standard. One of the thornier issues concerned a suitable frame/field refresh rate, the world already havin... |
56fa6e23f34c681400b0c0b9 | What was one of the issues with setting a single HDTV standard? | a suitable frame/field refresh rate | [
"High-definition_television\n\nIn 1983, the International Telecommunication Union's radio telecommunications sector (ITU-R) set up a working party (IWP11/6) with the aim of setting a single international HDTV standard. One of the thornier issues concerned a suitable frame/field refresh rate, the world already havin... |
56fa6e23f34c681400b0c0ba | What was used as a conversion between the two main frame/field rates? | motion vectors | [
"High-definition_television\n\nIn 1983, the International Telecommunication Union's radio telecommunications sector (ITU-R) set up a working party (IWP11/6) with the aim of setting a single international HDTV standard. One of the thornier issues concerned a suitable frame/field refresh rate, the world already havin... |
56fa6e23f34c681400b0c0bb | How many frame/field rates were primarily being used in 1983? | two | [
"High-definition_television\n\nIn 1983, the International Telecommunication Union's radio telecommunications sector (ITU-R) set up a working party (IWP11/6) with the aim of setting a single international HDTV standard. One of the thornier issues concerned a suitable frame/field refresh rate, the world already havin... |
56fa6fd3f34c681400b0c0c1 | What aspect ratio was agreed upon due to the influence of widescreen cinema? | 16:9 | [
"High-definition_television\n\nInitially the existing 5:3 aspect ratio had been the main candidate but, due to the influence of widescreen cinema, the aspect ratio 16:9 (1.78) eventually emerged as being a reasonable compromise between 5:3 (1.67) and the common 1.85 widescreen cinema format. An aspect ratio of 16:9... |
56fa6fd3f34c681400b0c0c2 | Who agreed upon the 16:9 aspect ratio? | the IWP11/6 working party | [
"High-definition_television\n\nInitially the existing 5:3 aspect ratio had been the main candidate but, due to the influence of widescreen cinema, the aspect ratio 16:9 (1.78) eventually emerged as being a reasonable compromise between 5:3 (1.67) and the common 1.85 widescreen cinema format. An aspect ratio of 16:9... |
56fa6fd3f34c681400b0c0c3 | What was a leading factor in the 16:9 aspect ratio being chosen? | widescreen cinema | [
"High-definition_television\n\nInitially the existing 5:3 aspect ratio had been the main candidate but, due to the influence of widescreen cinema, the aspect ratio 16:9 (1.78) eventually emerged as being a reasonable compromise between 5:3 (1.67) and the common 1.85 widescreen cinema format. An aspect ratio of 16:9... |
56fa6fd3f34c681400b0c0c4 | Which encoding contains both progressive and interlaced content? | MBAFF | [
"High-definition_television\n\nInitially the existing 5:3 aspect ratio had been the main candidate but, due to the influence of widescreen cinema, the aspect ratio 16:9 (1.78) eventually emerged as being a reasonable compromise between 5:3 (1.67) and the common 1.85 widescreen cinema format. An aspect ratio of 16:9... |
56fa6fd3f34c681400b0c0c5 | Which aspect ratio was the early favorite? | 5:3 | [
"High-definition_television\n\nInitially the existing 5:3 aspect ratio had been the main candidate but, due to the influence of widescreen cinema, the aspect ratio 16:9 (1.78) eventually emerged as being a reasonable compromise between 5:3 (1.67) and the common 1.85 widescreen cinema format. An aspect ratio of 16:9... |
56fa74058f12f31900630149 | What scan format is also included in MBAFF? | 1440×1152 HDMAC | [
"High-definition_television\n\nIt also includes the alternative 1440×1152 HDMAC scan format. (According to some reports, a mooted 750-line (720p) format (720 progressively scanned lines) was viewed by some at the ITU as an enhanced television format rather than a true HDTV format, and so was not included, although ... |
56fa74058f12f3190063014a | What was viewed by some as enhanced television format and not true HDTV format? | a mooted 750-line | [
"High-definition_television\n\nIt also includes the alternative 1440×1152 HDMAC scan format. (According to some reports, a mooted 750-line (720p) format (720 progressively scanned lines) was viewed by some at the ITU as an enhanced television format rather than a true HDTV format, and so was not included, although ... |
56fa74058f12f3190063014b | A mooted 750-line was seen by some at the ITU as what? | an enhanced television format | [
"High-definition_television\n\nIt also includes the alternative 1440×1152 HDMAC scan format. (According to some reports, a mooted 750-line (720p) format (720 progressively scanned lines) was viewed by some at the ITU as an enhanced television format rather than a true HDTV format, and so was not included, although ... |
56fa74058f12f3190063014c | What were 1920x1080i and 1280x720p defined by? | US SMPTE standards | [
"High-definition_television\n\nIt also includes the alternative 1440×1152 HDMAC scan format. (According to some reports, a mooted 750-line (720p) format (720 progressively scanned lines) was viewed by some at the ITU as an enhanced television format rather than a true HDTV format, and so was not included, although ... |
56fa7909f34c681400b0c0cb | When was HDTV introduced in the US? | late 1980s | [
"High-definition_television\n\nHDTV technology was introduced in the United States in the late 1980s and made official in 1993 by the Digital HDTV Grand Alliance, a group of television, electronic equipment, communications companies consisting of AT&T Bell Labs, General Instrument, Philips, Sarnoff, Thomson, Zenith... |
56fa7909f34c681400b0c0cc | Who made HDTV official in 1993? | the Digital HDTV Grand Alliance | [
"High-definition_television\n\nHDTV technology was introduced in the United States in the late 1980s and made official in 1993 by the Digital HDTV Grand Alliance, a group of television, electronic equipment, communications companies consisting of AT&T Bell Labs, General Instrument, Philips, Sarnoff, Thomson, Zenith... |
56fa7909f34c681400b0c0cd | AT&T, Philips, Zenith, and MIT, among others, made up what group in the 90's? | the Digital HDTV Grand Alliance | [
"High-definition_television\n\nHDTV technology was introduced in the United States in the late 1980s and made official in 1993 by the Digital HDTV Grand Alliance, a group of television, electronic equipment, communications companies consisting of AT&T Bell Labs, General Instrument, Philips, Sarnoff, Thomson, Zenith... |
56fa7909f34c681400b0c0ce | When did the first public HDTV broadcast happen in the US? | July 23, 1996 | [
"High-definition_television\n\nHDTV technology was introduced in the United States in the late 1980s and made official in 1993 by the Digital HDTV Grand Alliance, a group of television, electronic equipment, communications companies consisting of AT&T Bell Labs, General Instrument, Philips, Sarnoff, Thomson, Zenith... |
56fa7909f34c681400b0c0cf | What does ATSC stand for? | Advanced Television Systems Committee | [
"High-definition_television\n\nHDTV technology was introduced in the United States in the late 1980s and made official in 1993 by the Digital HDTV Grand Alliance, a group of television, electronic equipment, communications companies consisting of AT&T Bell Labs, General Instrument, Philips, Sarnoff, Thomson, Zenith... |
56fa7a6cf34c681400b0c0d5 | When did the first HDTV transmissions happen in Europe? | 1990 | [
"High-definition_television\n\nThe first HDTV transmissions in Europe, albeit not direct-to-home, began in 1990, when the Italian broadcaster RAI used the HD-MAC and MUSE HDTV technologies to broadcast the 1990 FIFA World Cup. The matches were shown in 8 cinemas in Italy and 2 in Spain. The connection with Spain wa... |
56fa7a6cf34c681400b0c0d6 | What event was the first HDTV broadcast in Europe? | FIFA World Cup | [
"High-definition_television\n\nThe first HDTV transmissions in Europe, albeit not direct-to-home, began in 1990, when the Italian broadcaster RAI used the HD-MAC and MUSE HDTV technologies to broadcast the 1990 FIFA World Cup. The matches were shown in 8 cinemas in Italy and 2 in Spain. The connection with Spain wa... |
56fa7a6cf34c681400b0c0d7 | When did Europe abandon standard transmission? | mid-1990s | [
"High-definition_television\n\nThe first HDTV transmissions in Europe, albeit not direct-to-home, began in 1990, when the Italian broadcaster RAI used the HD-MAC and MUSE HDTV technologies to broadcast the 1990 FIFA World Cup. The matches were shown in 8 cinemas in Italy and 2 in Spain. The connection with Spain wa... |
56fa7a6cf34c681400b0c0d8 | Where was the FIFA World Cup able to be watched in HDTV? | 8 cinemas in Italy and 2 in Spain | [
"High-definition_television\n\nThe first HDTV transmissions in Europe, albeit not direct-to-home, began in 1990, when the Italian broadcaster RAI used the HD-MAC and MUSE HDTV technologies to broadcast the 1990 FIFA World Cup. The matches were shown in 8 cinemas in Italy and 2 in Spain. The connection with Spain wa... |
56fa7b568f12f31900630151 | When did regular broadcasts start in Europe? | January 1, 2004 | [
"High-definition_television\n\nThe first regular broadcasts started on January 1, 2004 when the Belgian company Euro1080 launched the HD1 channel with the traditional Vienna New Year's Concert. Test transmissions had been active since the IBC exhibition in September 2003, but the New Year's Day broadcast marked the... |
56fa7b568f12f31900630152 | What event was first broadcasted on January 1, 2004? | Vienna New Year's Concert | [
"High-definition_television\n\nThe first regular broadcasts started on January 1, 2004 when the Belgian company Euro1080 launched the HD1 channel with the traditional Vienna New Year's Concert. Test transmissions had been active since the IBC exhibition in September 2003, but the New Year's Day broadcast marked the... |
56fa7b568f12f31900630153 | The New Year's Day broadcast officially launched which channel? | HD1 | [
"High-definition_television\n\nThe first regular broadcasts started on January 1, 2004 when the Belgian company Euro1080 launched the HD1 channel with the traditional Vienna New Year's Concert. Test transmissions had been active since the IBC exhibition in September 2003, but the New Year's Day broadcast marked the... |
56fa7b568f12f31900630154 | When did test transmissions of HDTV begin in Europe? | September 2003 | [
"High-definition_television\n\nThe first regular broadcasts started on January 1, 2004 when the Belgian company Euro1080 launched the HD1 channel with the traditional Vienna New Year's Concert. Test transmissions had been active since the IBC exhibition in September 2003, but the New Year's Day broadcast marked the... |
56fa7b568f12f31900630155 | Which European company launched HD1? | Euro1080 | [
"High-definition_television\n\nThe first regular broadcasts started on January 1, 2004 when the Belgian company Euro1080 launched the HD1 channel with the traditional Vienna New Year's Concert. Test transmissions had been active since the IBC exhibition in September 2003, but the New Year's Day broadcast marked the... |
56fa7cba8f12f3190063015b | Euro1080 was a division of what former company? | Alfacam | [
"High-definition_television\n\nEuro1080, a division of the former and now bankrupt Belgian TV services company Alfacam, broadcast HDTV channels to break the pan-European stalemate of \"no HD broadcasts mean no HD TVs bought means no HD broadcasts ...\" and kick-start HDTV interest in Europe. The HD1 channel was ini... |
56fa7cba8f12f3190063015c | What "chicken or the egg" stalemate prompted Euro1080 to broadcast HDTV channels? | "no HD broadcasts mean no HD TVs bought means no HD broadcasts ..." | [
"High-definition_television\n\nEuro1080, a division of the former and now bankrupt Belgian TV services company Alfacam, broadcast HDTV channels to break the pan-European stalemate of \"no HD broadcasts mean no HD TVs bought means no HD broadcasts ...\" and kick-start HDTV interest in Europe. The HD1 channel was ini... |
56fa7cba8f12f3190063015d | What was Euro1080 hoping to kick-start by broadcasting HDTV channels? | HDTV interest in Europe | [
"High-definition_television\n\nEuro1080, a division of the former and now bankrupt Belgian TV services company Alfacam, broadcast HDTV channels to break the pan-European stalemate of \"no HD broadcasts mean no HD TVs bought means no HD broadcasts ...\" and kick-start HDTV interest in Europe. The HD1 channel was ini... |
56fa7cba8f12f3190063015e | How much did viewers have to pay for the HD1 channel? | free-to-air | [
"High-definition_television\n\nEuro1080, a division of the former and now bankrupt Belgian TV services company Alfacam, broadcast HDTV channels to break the pan-European stalemate of \"no HD broadcasts mean no HD TVs bought means no HD broadcasts ...\" and kick-start HDTV interest in Europe. The HD1 channel was ini... |
56fa7cba8f12f3190063015f | What was on HD1 for 4 or 5 hours per day? | a multi-lingual soundtrack on a rolling schedule | [
"High-definition_television\n\nEuro1080, a division of the former and now bankrupt Belgian TV services company Alfacam, broadcast HDTV channels to break the pan-European stalemate of \"no HD broadcasts mean no HD TVs bought means no HD broadcasts ...\" and kick-start HDTV interest in Europe. The HD1 channel was ini... |
56fa81d38f12f31900630165 | What format did the first European HDTV broadcast use? | 1080i format | [
"High-definition_television\n\nThese first European HDTV broadcasts used the 1080i format with MPEG-2 compression on a DVB-S signal from SES's Astra 1H satellite. Euro1080 transmissions later changed to MPEG-4/AVC compression on a DVB-S2 signal in line with subsequent broadcast channels in Europe."
] |
56fa81d38f12f31900630166 | What compression did the first European HDTV broadcast use? | MPEG-2 | [
"High-definition_television\n\nThese first European HDTV broadcasts used the 1080i format with MPEG-2 compression on a DVB-S signal from SES's Astra 1H satellite. Euro1080 transmissions later changed to MPEG-4/AVC compression on a DVB-S2 signal in line with subsequent broadcast channels in Europe."
] |
56fa81d38f12f31900630167 | What signal did the first European HDTV broadcast use? | DVB-S | [
"High-definition_television\n\nThese first European HDTV broadcasts used the 1080i format with MPEG-2 compression on a DVB-S signal from SES's Astra 1H satellite. Euro1080 transmissions later changed to MPEG-4/AVC compression on a DVB-S2 signal in line with subsequent broadcast channels in Europe."
] |
56fa81d38f12f31900630168 | What compression did Euro1080 later change to? | MPEG-4/AVC | [
"High-definition_television\n\nThese first European HDTV broadcasts used the 1080i format with MPEG-2 compression on a DVB-S signal from SES's Astra 1H satellite. Euro1080 transmissions later changed to MPEG-4/AVC compression on a DVB-S2 signal in line with subsequent broadcast channels in Europe."
] |
56fa81d38f12f31900630169 | What signal did Euro1080 later change to? | DVB-S2 | [
"High-definition_television\n\nThese first European HDTV broadcasts used the 1080i format with MPEG-2 compression on a DVB-S signal from SES's Astra 1H satellite. Euro1080 transmissions later changed to MPEG-4/AVC compression on a DVB-S2 signal in line with subsequent broadcast channels in Europe."
] |
56fa84e7f34c681400b0c0dd | According to the 2010 Satellite Monitor market survey, how many HD capable TV's were sold in Europe? | 185 million | [
"High-definition_television\n\nDespite delays in some countries, the number of European HD channels and viewers has risen steadily since the first HDTV broadcasts, with SES's annual Satellite Monitor market survey for 2010 reporting more than 200 commercial channels broadcasting in HD from Astra satellites, 185 mil... |
56fa84e7f34c681400b0c0de | According to the 2010 Satellite Monitor market survey, how many European households were watching HD broadcasts? | 20 million | [
"High-definition_television\n\nDespite delays in some countries, the number of European HD channels and viewers has risen steadily since the first HDTV broadcasts, with SES's annual Satellite Monitor market survey for 2010 reporting more than 200 commercial channels broadcasting in HD from Astra satellites, 185 mil... |
56fa84e7f34c681400b0c0df | How many pounds were spent in Europe on HD capable TVs in 2010? | £60 million | [
"High-definition_television\n\nDespite delays in some countries, the number of European HD channels and viewers has risen steadily since the first HDTV broadcasts, with SES's annual Satellite Monitor market survey for 2010 reporting more than 200 commercial channels broadcasting in HD from Astra satellites, 185 mil... |
56fa84e7f34c681400b0c0e0 | What percentage of European digital satellite TV homes were watching HD broadcasts in 2010? | 27% | [
"High-definition_television\n\nDespite delays in some countries, the number of European HD channels and viewers has risen steadily since the first HDTV broadcasts, with SES's annual Satellite Monitor market survey for 2010 reporting more than 200 commercial channels broadcasting in HD from Astra satellites, 185 mil... |
56fa84e7f34c681400b0c0e1 | The number of European HD channels and viewers has done what since the first HDTV broadcasts? | risen steadily | [
"High-definition_television\n\nDespite delays in some countries, the number of European HD channels and viewers has risen steadily since the first HDTV broadcasts, with SES's annual Satellite Monitor market survey for 2010 reporting more than 200 commercial channels broadcasting in HD from Astra satellites, 185 mil... |
56fa85dd8f12f3190063016f | Which European country first deployed HD content using the new DVB-T2 standard? | the United Kingdom | [
"High-definition_television\n\nIn December 2009 the United Kingdom became the first European country to deploy high definition content using the new DVB-T2 transmission standard, as specified in the Digital TV Group (DTG) D-book, on digital terrestrial television."
] |
56fa85dd8f12f31900630170 | When did the UK deploy HD content using the new DVB-T2 transmission standard? | December 2009 | [
"High-definition_television\n\nIn December 2009 the United Kingdom became the first European country to deploy high definition content using the new DVB-T2 transmission standard, as specified in the Digital TV Group (DTG) D-book, on digital terrestrial television."
] |
56fa85dd8f12f31900630171 | What transmission standard did the UK start using in December 2009? | DVB-T2 | [
"High-definition_television\n\nIn December 2009 the United Kingdom became the first European country to deploy high definition content using the new DVB-T2 transmission standard, as specified in the Digital TV Group (DTG) D-book, on digital terrestrial television."
] |
56fa85dd8f12f31900630172 | What does DTG stand for? | Digital TV Group | [
"High-definition_television\n\nIn December 2009 the United Kingdom became the first European country to deploy high definition content using the new DVB-T2 transmission standard, as specified in the Digital TV Group (DTG) D-book, on digital terrestrial television."
] |
56fa88b8f34c681400b0c0e7 | How many HD channels did the Freeview HD service contain as of December 2013? | 10 | [
"High-definition_television\n\nThe Freeview HD service currently contains 10 HD channels (as of December 2013[update]) and was rolled out region by region across the UK in accordance with the digital switchover process, finally being completed in October 2012. However, Freeview HD is not the first HDTV service over... |
56fa88b8f34c681400b0c0e8 | When was the digital switchover process completed in the UK? | October 2012 | [
"High-definition_television\n\nThe Freeview HD service currently contains 10 HD channels (as of December 2013[update]) and was rolled out region by region across the UK in accordance with the digital switchover process, finally being completed in October 2012. However, Freeview HD is not the first HDTV service over... |
56fa88b8f34c681400b0c0e9 | Which service contains 10 HD channels and finished its roll out in October 2012? | Freeview HD | [
"High-definition_television\n\nThe Freeview HD service currently contains 10 HD channels (as of December 2013[update]) and was rolled out region by region across the UK in accordance with the digital switchover process, finally being completed in October 2012. However, Freeview HD is not the first HDTV service over... |
56fa88b8f34c681400b0c0ea | How was the Freeview HD service rolled out in the UK? | region by region | [
"High-definition_television\n\nThe Freeview HD service currently contains 10 HD channels (as of December 2013[update]) and was rolled out region by region across the UK in accordance with the digital switchover process, finally being completed in October 2012. However, Freeview HD is not the first HDTV service over... |
56fa8b328f12f31900630177 | What are the three HDTV parameters? | [frame size][scanning system][frame or field rate] | [
"High-definition_television\n\nIf all three parameters are used, they are specified in the following form: [frame size][scanning system][frame or field rate] or [frame size]/[frame or field rate][scanning system].[citation needed] Often, frame size or frame rate can be dropped if its value is implied from context. ... |
56fa8b328f12f31900630178 | Which two parameters can be dropped if its value is implied from context? | frame size or frame rate | [
"High-definition_television\n\nIf all three parameters are used, they are specified in the following form: [frame size][scanning system][frame or field rate] or [frame size]/[frame or field rate][scanning system].[citation needed] Often, frame size or frame rate can be dropped if its value is implied from context. ... |
56fa8b328f12f31900630179 | When can the frame size or frame rate parameter specification be dropped? | if its value is implied from context | [
"High-definition_television\n\nIf all three parameters are used, they are specified in the following form: [frame size][scanning system][frame or field rate] or [frame size]/[frame or field rate][scanning system].[citation needed] Often, frame size or frame rate can be dropped if its value is implied from context. ... |
56fa8b328f12f3190063017a | When a parameter is dropped, the remaining numeric parameter is specified first, followed by what? | the scanning system | [
"High-definition_television\n\nIf all three parameters are used, they are specified in the following form: [frame size][scanning system][frame or field rate] or [frame size]/[frame or field rate][scanning system].[citation needed] Often, frame size or frame rate can be dropped if its value is implied from context. ... |
56fa8e4af34c681400b0c0ef | What size is each 1920x1080p25 frame? | 1,920 pixels wide and 1,080 pixels high | [
"High-definition_television\n\nFor example, 1920×1080p25 identifies progressive scanning format with 25 frames per second, each frame being 1,920 pixels wide and 1,080 pixels high. The 1080i25 or 1080i50 notation identifies interlaced scanning format with 25 frames (50 fields) per second, each frame being 1,920 pix... |
56fa8e4af34c681400b0c0f0 | The 1920x1080p25 notion identifies progressive scanning format with how many frames per second? | 25 | [
"High-definition_television\n\nFor example, 1920×1080p25 identifies progressive scanning format with 25 frames per second, each frame being 1,920 pixels wide and 1,080 pixels high. The 1080i25 or 1080i50 notation identifies interlaced scanning format with 25 frames (50 fields) per second, each frame being 1,920 pix... |
56fa8e4af34c681400b0c0f1 | The 1080i25 or 1080i50 notion identifies interlaced scanning format with how many frames per second? | 25 | [
"High-definition_television\n\nFor example, 1920×1080p25 identifies progressive scanning format with 25 frames per second, each frame being 1,920 pixels wide and 1,080 pixels high. The 1080i25 or 1080i50 notation identifies interlaced scanning format with 25 frames (50 fields) per second, each frame being 1,920 pix... |
56fa8e4af34c681400b0c0f2 | The 1080i30 or 1080i60 notion identifies interlaced scanning format with how many frames per second? | 30 | [
"High-definition_television\n\nFor example, 1920×1080p25 identifies progressive scanning format with 25 frames per second, each frame being 1,920 pixels wide and 1,080 pixels high. The 1080i25 or 1080i50 notation identifies interlaced scanning format with 25 frames (50 fields) per second, each frame being 1,920 pix... |
56fa8e4af34c681400b0c0f3 | The 720p60 notion identifies progressive scanning format with how many frames per second? | 60 | [
"High-definition_television\n\nFor example, 1920×1080p25 identifies progressive scanning format with 25 frames per second, each frame being 1,920 pixels wide and 1,080 pixels high. The 1080i25 or 1080i50 notation identifies interlaced scanning format with 25 frames (50 fields) per second, each frame being 1,920 pix... |
56fa97178f12f3190063017f | What three scanning rates do 50 Hz systems support? | 50i, 25p and 50p | [
"High-definition_television\n\n50 Hz systems support three scanning rates: 50i, 25p and 50p. 60 Hz systems support a much wider set of frame rates: 59.94i, 60i, 23.976p, 24p, 29.97p, 30p, 59.94p and 60p. In the days of standard definition television, the fractional rates were often rounded up to whole numbers, e.g.... |
56fa97178f12f31900630180 | Which system suports 59.94i, 60i, 23.976p, 24p, 29.97p, 30p, 59.94p, and 60p | 60 Hz | [
"High-definition_television\n\n50 Hz systems support three scanning rates: 50i, 25p and 50p. 60 Hz systems support a much wider set of frame rates: 59.94i, 60i, 23.976p, 24p, 29.97p, 30p, 59.94p and 60p. In the days of standard definition television, the fractional rates were often rounded up to whole numbers, e.g.... |
56fa97178f12f31900630181 | SD television fractional rates were often rounded to what? | whole numbers | [
"High-definition_television\n\n50 Hz systems support three scanning rates: 50i, 25p and 50p. 60 Hz systems support a much wider set of frame rates: 59.94i, 60i, 23.976p, 24p, 29.97p, 30p, 59.94p and 60p. In the days of standard definition television, the fractional rates were often rounded up to whole numbers, e.g.... |
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