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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. ATSC standards - Wikipedia

    en.wikipedia.org/wiki/ATSC_standards

    ATSC standards are marked A/x (x is the standard number) and can be downloaded for free from the ATSC's website at ATSC.org. ATSC Standard A/53, which implemented the system developed by the Grand Alliance, was published in 1995; the standard was adopted by the Federal Communications Commission in the United States in 1996. It was revised in 2009.

  4. Digital television - Wikipedia

    en.wikipedia.org/wiki/Digital_television

    Digital television ( DTV) is the transmission of television signals using digital encoding, in contrast to the earlier analog television technology which used analog signals. At the time of its development it was considered an innovative advancement and represented the first significant evolution in television technology since color television ...

  5. Digital television transition in the United States - Wikipedia

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

    ATSC 3.0 (also known by the moniker NextGen TV) is a new digital television transmission standard which is not backwards compatible with ATSC 1.0, the standard employed in the 2009 digital transition. Transition to ATSC 3.0 is voluntary on both ends: television manufacturers are not required to provide ATSC 3.0 compatible tuners in televisions.

  6. Broadcast television systems - Wikipedia

    en.wikipedia.org/wiki/Broadcast_television_systems

    Broadcast television systems (or terrestrial television systems outside the US and Canada) are the encoding or formatting systems for the transmission and reception of terrestrial television signals. Analog television systems were standardized by the International Telecommunication Union (ITU) in 1961, [1] with each system designated by a ...

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

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

    HDTV has quickly become the standard, with about 85% of all TVs used being HD as of 2018. [1] [ failed verification ] In the US, the 720p and 1080i formats are used for linear channels, while 1080p is available on a limited basis, mainly for pay-per-view and video on demand content.

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