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2. Ultra-high-definition television - Wikipedia

   en.wikipedia.org/wiki/Ultra-high-definition...

   [156] [157] The CEA also clarified that "Ultra High-Definition", "Ultra HD", or "UHD" can be used with other modifiers and gave an example with "Ultra High-Definition TV 4K". [156] [157] On July 15, 2014, Researchers from the University of Essex both captured and delivered its graduation ceremonies in 4K UHDTV over the internet using H.264 in ...

3. ATSC standards - Wikipedia

   en.wikipedia.org/wiki/ATSC_standards

   ATSC includes two primary high definition video formats, 1080i and 720p. It also includes standard-definition formats, although initially only HDTV services were launched in the digital format. ATSC can carry multiple channels of information on a single stream, and it is common for there to be a single high-definition signal and several ...

4. List of ATSC standards - Wikipedia

   en.wikipedia.org/wiki/List_of_ATSC_standards

   Presentation: Audio and Video standards (to be determined), Ultra HD with High Definition and standard-definition multicast, Immersive Audio; Applications: Screen is a web page; Finalized Standards. A/200: Regional Service Availability (finalized on July 8, 2020) A/300: ATSC 3.0 [10] A/321: System Discovery and Signalling; A/322: Physical Layer ...

5. High-definition television transition - Wikipedia

   en.wikipedia.org/wiki/High-definition_television...

   Malaysia: RTM initiated its inaugural high-definition television (HDTV) trials in 2008, with the Beijing Olympic Games, of which RTM test-broadcast the opening and closing ceremony, and several events on HD. [43] In late 2009, Astro launched Astro B.yond as a personal video recorder and a high-definition television service.

6. Digital television in the United States - Wikipedia

   en.wikipedia.org/wiki/Digital_television_in_the...

   High definition—1080p (only used by a few cable operators and some terrestrial stations broadcast in 1080p) Most digital television sets sold in the U.S. use a display with a 16:9 aspect ratio to optimally display HDTV-formatted content. Lower-resolution sources like regular DVDs may be upscaled to the native resolution of the TV.

7. 4K resolution - Wikipedia

   en.wikipedia.org/wiki/4K_resolution

   The CEA definition does allow manufacturers to use other terms—such as 4K—alongside the Ultra HD logo. [4]: 9 Since the resolution in CEA's definition is only a minimum requirement, displays with higher resolutions such as 4096 × 2160 or 5120 × 2880 also qualify as "Ultra HD" displays, provided they meet the other requirements.

8. High-definition television - Wikipedia

   en.wikipedia.org/wiki/High-definition_television

   50 Hz (DVB high-definition material) 59.94 Hz (ATSC high-definition material) 60 Hz (ATSC high-definition material) The optimum format for a broadcast depends upon the type of videographic recording medium used and the image's characteristics. For best fidelity to the source, the transmitted field ratio, lines, and frame rate should match those ...

9. High-definition television in the United States - Wikipedia

   en.wikipedia.org/wiki/High-definition_television...

   High-definition television (HDTV) in the United States was introduced in 1998 and has since become increasingly popular and dominant in the television market. Hundreds of HD channels are available in millions of homes and businesses both terrestrially and via subscription services such as satellite, cable and IPTV. HDTV has quickly become the ...