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  2. Broadcast delay - Wikipedia

    en.wikipedia.org/wiki/Broadcast_delay

    Broadcast delay. In radio and television, broadcast delay is an intentional delay when broadcasting live material, technically referred to as a deferred live. Such a delay may be to prevent mistakes or unacceptable content from being broadcast. Longer delays lasting several hours can also be introduced so that the material is aired at a later ...

  3. Digital television transition in the United States - Wikipedia

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

    12 June 2009 - final hours of analog broadcast on WWL-TV gave information about websites and telephone numbers for more information about transition. The digital transition in the United States was the switchover from analog to exclusively digital broadcasting of terrestrial television programming.

  4. 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 ...

  5. Error correction code - Wikipedia

    en.wikipedia.org/wiki/Error_correction_code

    A block code (specifically a Hamming code) where redundant bits are added as a block to the end of the initial message A continuous convolutional code where redundant bits are added continuously into the structure of the code word. The two main categories of ECC codes are block codes and convolutional codes. Block codes work on fixed-size ...

  6. List of digital television deployments by country - Wikipedia

    en.wikipedia.org/wiki/List_of_digital_television...

    Ireland. In Ireland, there are a number of providers of digital television. These include Sky Ireland which is operated by Sky plc (available nationwide), while Virgin Media Ireland, Magnet Networks and Cablecomm provide various digital-cable services. Digital Television is also available by IPTV provider Magnet Networks.

  7. Television in the United States - Wikipedia

    en.wikipedia.org/wiki/Television_in_the_United...

    In the United States, television is available via broadcast (also known as "over-the-air" or OTA) – the earliest method of receiving television programming, which merely requires an antenna and an equipped internal or external tuner capable of picking up channels that transmit on the two principal broadcast bands, very high frequency (VHF) and ultra high frequency (UHF), to receive the ...

  8. Pulse-code modulation - Wikipedia

    en.wikipedia.org/wiki/Pulse-code_modulation

    Pulse-code modulation (PCM) is a method used to digitally represent analog signals. It is the standard form of digital audio in computers, compact discs, digital telephony and other digital audio applications. In a PCM stream, the amplitude of the analog signal is sampled at uniform intervals, and each sample is quantized to the nearest value ...

  9. Zap time - Wikipedia

    en.wikipedia.org/wiki/Zap_time

    The zap time is the total duration of time from which the viewer changes the channel using a remote control to the point that the picture of the new channel is displayed. This includes the corresponding audio. These delays exist in all television systems, but they are more pronounced in digital television and systems that use the internet such ...