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  1. en.wikipedia.org › wiki › High-definition_televisionHigh-definition television - Wikipedia

    High-definition television (HDTV) describes a television or video system which provides a substantially higher image resolution than the previous generation of technologies. The term has been used since at least 1933; [1] in more recent times, it refers to the generation following standard-definition television (SDTV).

  2. en.wikipedia.org › wiki › High-definition_televisionHigh-definition television in the United States - Wikipedia

    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 .

    Name
    First-launched Hd Service
    Hd Format [6]
    Category
    A&E
    September 4, 2006
    1080i
    Entertainment
    ABC
    September 16, 2001
    720p
    Broadcast
    AccuWeather Network
    March 10, 2015
    1080i
    News
    Adult Swim
    October 15, 2007
    1080i
    Entertainment

    See full list on en.wikipedia.org

  3. en.wikipedia.org › wiki › Ultra-high-definitionUltra-high-definition television - Wikipedia

    Ultra-high-definition television (also known as Ultra HD television, Ultra HD, UHDTV, UHD and Super Hi-Vision) today includes 4K UHD and 8K UHD, which are two digital video formats with an aspect ratio of 16:9.

    • 7680×4320
    • 0.75 H
    • 100°
    • 16:9

  4. en.wikipedia.org › wiki › TelevisionTelevision - Wikipedia

    Television ( TV) is a telecommunication medium for transmitting moving images and sound. The term can refer to a television set, or the medium of television transmission. Television is a mass medium for advertising, entertainment, news, and sports.

  5. simple.wikipedia.org › wiki › High-definition_televisionHigh-definition television - Simple English Wikipedia, the ...

    High-definition television (HDTV) is a television broadcasting system which uses a higher resolution than a normal television. With HDTV, people can see sharper pictures than with old television, giving a more vivid and clear screen. Most HDTV systems use digital signals with a 16:9 aspect ratio (width to height).

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  7. www.newworldencyclopedia.org › entry › HighHigh-definition television - New World Encyclopedia

    High-definition television (HDTV) is a digital television broadcasting system with higher resolution than traditional television systems (standard-definition TV, or SDTV). HDTV is digitally broadcast because digital television (DTV) requires less bandwidth if sufficient video compression is used. Contents. 1 History of high-definition television.

  8. www.explainthatstuff.com › hdtvHow does HDTV work? - Explain that Stuff

    Mar 20, 2022 · What is HDTV? All televisions make their pictures the same way, building up one large image from many small dots, squares, or rectangles called pixels. The biggest single difference between HDTV and what came before it (which is known as standard definition TV or SDTV) is the sheer number of these pixels. More pixels.

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