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In the 1940's, the FCC began assigning certain channels to specific geographic ares to make sure there was no interference.
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A daily evening newsccast that began in February of 194, it was originally a ten mintue Fow Movietone newreel that was also shown in theatres, this filmed news service was converted to a live broadcast one year later.
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Luc y became the first TV program filmed in front of a live studio audience.
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A film camera recorded a live TV show off of a studio monitor.
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In 1956, the CBS program became the frist news show videotaped for rebroadcast on an affiliate station in western time zones.
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In December of 1976, Ted Turner beamed, or uplinked, the signal from WTBS, his Atlanta- based independent station, to a satellite, where cable systems and broadcast stations around the country could access, or downlink, it.
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The final episode of MASH was aired.