HDTV in the US
- High definition television (HDTV) is a digital television broadcasting system with a significantly higher resolution than traditional formats like NTSC, SECAM and PAL.
- HDTV technology was first introduced in the US during the 1990s by a group of electronics companies called the Digital HDTV Grand Alliance.Source
- Today there are dozens of high definition programs transmitted in American homes around the clock. HDTV can be received today via three different systems:
- According to the National Association of Broadcasters, currently 1,315 stations in the U.S. transmitting digital TV signals. Many of these stations broadcast high-definition content as well. HDTV is offered by CBS, NBC, Fox, WB, UPN, and PBS stations.
- Digital tuner either built into the TV or as separate set-top box is required for receiving such broad casted content.
- Many Cable systems offer premium HD movie channels, regional sports and local HD broadcast channels. Cable also has its own exclusive network called In HD and In HD 2 for providing movies, music and varied programming.
- CableCARD or cable digital HD set-top box is required for receiving content transmitted by cable.
- Satellite companies are continually expanding their HD offerings to movies on HBO, Cinemax, Showtime, The Movie Channel, Starz, HD Net Movies and Encore. Arts, Music, Animation, Extreme Sports, and Travel Logs are now available full-time in HD via satellite.
- Special satellite HD receiver is required for receiving content transmitted by satellite.
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Providers of HD channels