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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.
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).
High-definition video ( HD video) is video of higher resolution and quality than standard-definition. While there is no standardized meaning for high-definition, generally any video image with considerably more than 480 vertical scan lines (North America) or 576 vertical lines (Europe) is considered high-definition. [citation needed] 480 scan ...
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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. These were first proposed by NHK Science & Technology Research Laboratories and later defined and approved by the International ...
HDNet Movies is an American digital cable and satellite television network owned and operated by HDNet LLC, operating as a subsidiary of AXS TV LLC. Launched by founder Mark Cuban in January 2003 as a spin-off of HDNet (now AXS TV), the network features theatrically released films and documentaries, which are presented in high definition and without commercial interruption or editing for content.
HD-MAC. HD-MAC was a proposed television standard by the European Commission in 1986 (MAC standard). It was an early attempt by the EEC to provide HDTV in Europe. It was a complex mix of analog signal ( Multiplexed Analog Components) multiplexed with digital sound. The video signal (1,250 (1,152 visible) lines/50 frames in 16:9 aspect ratio ...
HLN is an American basic cable network. Owned by CNN Worldwide, the network primarily carries true-crime programming, as well as limited live news programming.. The channel was originally launched on January 1, 1982, by Turner Broadcasting as CNN2 (later renamed Headline News or CNN Headline News), a sister network to CNN that broadcast a looping, half-hour cycle of segments covering various ...
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