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  2. Digital television in the United States - Wikipedia

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

    Digital television sets (equipped with ATSC tuners) are often capable of viewing a baseline set of unencrypted digital programming, known as basic cable or low-tier channels, which typically include local network television affiliates. According to FCC regulations, television providers must provide "separable security" for accessing encrypted ...

  3. DirecTV - Wikipedia

    en.wikipedia.org/wiki/DirecTV

    All DirecTV-delivered local HDTV stations (outside of the NYC and LA network stations) are encoded in MPEG-4. The HR10-250 cannot receive the MPEG-4 local HDTV stations in these markets but can still receive over-the-air ATSC broadcasts in these markets. After a multi-year hiatus, TiVo and DirecTV are developing a new TiVo-enabled HD DVR that ...

  4. Digital television transition in the United States - Wikipedia

    en.wikipedia.org/wiki/Digital_television...

    Transition testing Wilmington, North Carolina test market. As part of a test by the FCC to iron out transition and reception concerns before the nationwide shutoff, all of the major commercial network stations in the Wilmington, North Carolina market ceased transmission of their analog signals on September 8, 2008, making it the first market in the nation to go digital-only.

  5. 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 .

  6. Digital terrestrial television - Wikipedia

    en.wikipedia.org/wiki/Digital_terrestrial_television

    Digital terrestrial television (DTTV, DTT, or DTTB) is a technology for terrestrial television where television stations broadcast television content in a digital format. DTTV is a major technological advance over analog television, and has largely replaced analog television broadcast, which had been in common use since the middle of the 20th century.

  7. Lists of television stations in North America - Wikipedia

    en.wikipedia.org/wiki/Lists_of_television...

    United States. According to the FCC, as of March 31, 2011, there are 1022 UHF commercial television stations, 360 VHF commercial television stations, 285 UHF educational television stations and 107 VHF educational television stations, plus 439 Class A UHF television stations, 76 Class A VHF television stations, 3043 UHF television translators ...

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