answer stringlengths 1 239 ⌀ | question stringlengths 1 25.7k |
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an enhanced television format | A mooted 750-line was seen by some at the ITU as what? |
US SMPTE standards | What were 1920x1080i and 1280x720p defined by? |
late 1980s | When was HDTV introduced in the US? |
the Digital HDTV Grand Alliance | Who made HDTV official in 1993? |
the Digital HDTV Grand Alliance | AT&T, Philips, Zenith, and MIT, among others, made up what group in the 90's? |
July 23, 1996 | When did the first public HDTV broadcast happen in the US? |
Advanced Television Systems Committee | What does ATSC stand for? |
1990 | When did the first HDTV transmissions happen in Europe? |
FIFA World Cup | What event was the first HDTV broadcast in Europe? |
mid-1990s | When did Europe abandon standard transmission? |
8 cinemas in Italy and 2 in Spain | Where was the FIFA World Cup able to be watched in HDTV? |
January 1, 2004 | When did regular broadcasts start in Europe? |
Vienna New Year's Concert | What event was first broadcasted on January 1, 2004? |
HD1 | The New Year's Day broadcast officially launched which channel? |
September 2003 | When did test transmissions of HDTV begin in Europe? |
Euro1080 | Which European company launched HD1? |
Alfacam | Euro1080 was a division of what former company? |
"no HD broadcasts mean no HD TVs bought means no HD broadcasts ..." | What "chicken or the egg" stalemate prompted Euro1080 to broadcast HDTV channels? |
HDTV interest in Europe | What was Euro1080 hoping to kick-start by broadcasting HDTV channels? |
free-to-air | How much did viewers have to pay for the HD1 channel? |
a multi-lingual soundtrack on a rolling schedule | What was on HD1 for 4 or 5 hours per day? |
1080i format | What format did the first European HDTV broadcast use? |
MPEG-2 | What compression did the first European HDTV broadcast use? |
DVB-S | What signal did the first European HDTV broadcast use? |
MPEG-4/AVC | What compression did Euro1080 later change to? |
DVB-S2 | What signal did Euro1080 later change to? |
185 million | According to the 2010 Satellite Monitor market survey, how many HD capable TV's were sold in Europe? |
20 million | According to the 2010 Satellite Monitor market survey, how many European households were watching HD broadcasts? |
£60 million | How many pounds were spent in Europe on HD capable TVs in 2010? |
27% | What percentage of European digital satellite TV homes were watching HD broadcasts in 2010? |
risen steadily | The number of European HD channels and viewers has done what since the first HDTV broadcasts? |
the United Kingdom | Which European country first deployed HD content using the new DVB-T2 standard? |
December 2009 | When did the UK deploy HD content using the new DVB-T2 transmission standard? |
DVB-T2 | What transmission standard did the UK start using in December 2009? |
Digital TV Group | What does DTG stand for? |
10 | How many HD channels did the Freeview HD service contain as of December 2013? |
October 2012 | When was the digital switchover process completed in the UK? |
Freeview HD | Which service contains 10 HD channels and finished its roll out in October 2012? |
region by region | How was the Freeview HD service rolled out in the UK? |
[frame size][scanning system][frame or field rate] | What are the three HDTV parameters? |
frame size or frame rate | Which two parameters can be dropped if its value is implied from context? |
if its value is implied from context | When can the frame size or frame rate parameter specification be dropped? |
the scanning system | When a parameter is dropped, the remaining numeric parameter is specified first, followed by what? |
1,920 pixels wide and 1,080 pixels high | What size is each 1920x1080p25 frame? |
25 | The 1920x1080p25 notion identifies progressive scanning format with how many frames per second? |
25 | The 1080i25 or 1080i50 notion identifies interlaced scanning format with how many frames per second? |
30 | The 1080i30 or 1080i60 notion identifies interlaced scanning format with how many frames per second? |
60 | The 720p60 notion identifies progressive scanning format with how many frames per second? |
50i, 25p and 50p | What three scanning rates do 50 Hz systems support? |
60 Hz | Which system suports 59.94i, 60i, 23.976p, 24p, 29.97p, 30p, 59.94p, and 60p |
whole numbers | SD television fractional rates were often rounded to what? |
ambiguity | Strict notation is required with HD fractional rates to avoid what? |
the frame rate | What is usually dropped for the commercial naming of an HDTV product? |
24 progressive scan frames per second | What does 24p mean? |
25 interlaced frames per second | What does 50i mean? |
a resolution | When naming a commercial HDTV product, a frame rate can be specified without what? |
no | Is there a single standard for HDTV color support? |
YUV | Before being converted to RGB, colors are ususally broadcasted using what color space? |
a RGB color space | Colors are typically broadcast using YUV and then converted to what? |
8-bit RGB channels | When transmitted over the internet, colors are typically to what? |
it will only be viewed only on a (sRGB) computer screen | What assumption is made with colors being transmitted over the internet? |
twice | At least how many times more linear resolution does HDTV have over SDTV? |
letterboxing or anamorphic stretching | HDTV increases the effective image resolution by not using what? |
standard-definition television | What does SDTV stand for? |
16:9 | HDTV handles what aspect ratio without using letterboxing or anamorphic stretching? |
fidelity | If more bandwith is required than is available, a very high resolution source my not be able to transmitted without loss of what? |
distort the received picture | The compression used in all HDTV storage and transmission systems will do what if resolution is too high? |
bandwidth | A very high resolution source may require more of what? |
the type of videographic recording medium used and the image's characteristics | A broadcasts optimum format depends on what two things? |
transmitted field ratio, lines, and frame rate | For best fidelity to the source, what three things should match the source? |
those of the source | For best fidelity to the source, the transmitted field ratio, lines, and frame rate should match what? |
The optimum format for a broadcast | The type of videographic recording medium used and the image's characteristics determine what? |
analogue standard | PAL, SECAM, and NTSC frame rates apply to what definition televisions? |
digital or high definition | PAL, SECAM, and NTSC frame rates do not apply to what broadcasts? |
25/50 Hz | In former PAL and SECAM countries, what frame rate does HDTV operate at? |
30/60 Hz | In former NTSC countries, what frame rate does HDTV operate at? |
24 frames per second | At what rate is standard 35mm photographic film exposed and projected? |
25 frame/s | To be shown on SDTV in PAL-system countries, at what rate is cinema film scanned? |
3:2 Pulldown | The technique in which with successive pair of film frames, one is held for three video fields, and the next is held for two, is called what? |
1/12 of a second | The 3:2 Pulldown techniques gives what total time for two frames? |
the correct average film frame rate | What is achieved by the 3:2 Pulldown technique producing a total time of 1/12 of a second for two frames? |
720p or 1080i | What two formats are typically used to recorde non-cinematic HDTV video intended for broadcast? |
720p | Which format is typically used for internet distribution of HD video? |
progressive-scan | Most computer monitors operate in what mode? |
Blu-ray | 1080i, 1080p, and 720p are often used on what kind of disc. |
ATSC | In the US, what kind of tuner is needed for residents to receive free, over the air programming? |
the change to digital terrestrial broadcasts | Laws regarding antennas were upated before what? |
home owners' associations and city government | Who do these laws prohibit from banning the installation of antennas? |
the installation of antennas | Laws about antennas keep home owners' associations and city government from banning what? |
2009 | Most television sets sold since what year have an ATSC tuner? |
an external box | HD content can be displayed by cable-ready TVs without using what? |
HD content | Without using an external box, cable-ready TVs can display what? |
a QAM tuner built-in and/or a card slot for inserting a CableCARD | What features allow the cable-ready TVs to display HD content without an external box? |
QAM | What kind of built-in tuner will allow a cable-ready TV to display HD content without an external box? |
CableCARD | What kind of card will allow a cable-ready TV to display HD content without an external box? |
IPTV | Roku and AppleTV are examples of what? |
High-definition image sources | Internet downloads, Blu-ray videos, and Apple TV are examples of what? |
High-definition image sources | Terrestrial broadcast and direct broadcast satellite are examples of what? |
High-definition image sources | Digital cable and Roku are examples of what? |
because of its built in Blu-ray disc based player | Why does the PlayStation 3 have extensive HD compatibility? |
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