Digital television (DTV) network is medium that transports moving images, in the form of digital
video signal and accompanying sound, in the form of digital audio signal, from one point to another.
However, the system may include data and control signals and hence may be thought of as a multimedia
system. Various network technologies find use in the digital television production and transmission of digital television signals. All transmission media are analog channels, but binary digital signals are so tolerant of channel characteristics that they are easily handled. The capability of most communication channels is much greater than what binary transmission requires. Many methods are available for digital television

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