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  2. Digital television - Wikipedia

    en.wikipedia.org/wiki/Digital_television

    This means that digital broadcasters can provide more digital channels in the same space, provide high-definition television service, or provide other non-television services such as multimedia or interactivity. DTV also permits special services such as multiplexing (more than one program on the same channel), electronic program guides and ...

  3. Digital television in the United States - Wikipedia

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

    The five main ATSC formats of DTV currently [when?] broadcast in the U.S. are: . Standard definition—480i, to maintain compatibility with existing NTSC sets when a digital television broadcast is converted back to an analog one [citation needed] —either by a converter box or a cable/satellite operator's proprietary equipment

  4. Digital terrestrial television - Wikipedia

    en.wikipedia.org/wiki/Digital_terrestrial_television

    Digital terrestrial television (DTTV, DTT, or DTTB) is a technology for terrestrial television, in which television stations broadcast television content in a digital format.

  5. List of United States over-the-air television networks

    en.wikipedia.org/wiki/List_of_United_States_over...

    Charge! maintains affiliations with 56 stations (nearly all of which carry the network on digital subchannels). Court TV – A renewal of the format which was formerly a cable channel until its 2007 relaunch as TruTV, Court TV is a digital multicast network owned by Katz Broadcasting licensing the branding and format from WarnerMedia; launched ...

  6. Virtual channel - Wikipedia

    en.wikipedia.org/wiki/Virtual_channel

    An example of the ATSC major and minor numbers would be to have main programming airing on say channel 8 (the "major channel") with analog on 8.0 and digital on 8.1 (the first two "minor channels") with other entertainment channels below 8.99 on channels 8.2, 8.3, and up and informational data channels ranging from 8.100 to 8.999.

  7. QAM (television) - Wikipedia

    en.wikipedia.org/wiki/QAM_(television)

    QAM is a digital television standard using quadrature amplitude modulation. It is the format by which digital cable channels are encoded and transmitted via cable television providers. QAM is used in a variety of communications systems such as Dial-up modems and WiFi.

  8. Digital television transition in the United States - Wikipedia

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

    Digital TV encoding allows stations to offer higher definition video and better sound quality than analog, as well as allowing the option of programming multiple digital subchannels (multicasting). However, it provides these advantages at the cost of a severe limitation of broadcast range. [citation needed]

  9. Digital cable - Wikipedia

    en.wikipedia.org/wiki/Digital_cable

    Digital cable is the distribution of cable television using digital data and video compression.The technology was first developed by General Instrument. By 2000, most cable companies offered digital features, eventually replacing their previous analog-based cable by the mid 2010s.