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2. 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.

3. 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 ...

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. High-definition television in the United States - Wikipedia

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

   Currently, HD programming is carried by all major television networks in nearly all DMAs, including ABC, CBS, NBC, FOX, PBS, The CW, MyNetworkTV, Telemundo, Univision, and UniMás; and on many independent stations. All but a select few of cable networks offer an HD broadcast to cable and satellite companies.

6. 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 ...

7. Digital subchannel - Wikipedia

   en.wikipedia.org/wiki/Digital_subchannel

   For example, the Sezmi TV/DVR service uses broadcast digital subchannels (not in the clear) in selected cities to stream a limited number of "cable" channels to its subscribers for an additional fee to supplement its otherwise free digital video recorder (DVR) service allowing recordings of local broadcast channels and free and subscription ...