MAC 143 Chapter Notes - Chapter 6: Prime Time Access Rule, Electronic Publishing, Communications Satellite
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MAC 143 Full Course Notes
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What happened to analog tv? analog ~ was used in usa until 2009 analog was replaced by digital signals digital allowed for increased channel capacity & improved image quality & sound. Many of the top rated programs in the 1950"s included the sponsors name in the title like: buick. Circus hour, camel news caravan, & colgate comedy hour having a single sponsor for a show meant advertiser could easily influence the programs content in early 1920"s the broadcast networks became unhappy w/ the lack of creative control. Time: 1952 nbc introduced today show as 3 hour talk news program and then in 1954 premiered 90 minute tonight show since these ran daily rather than weekly, the studio production costs prohibited a single sponsor. Usa launched domestic communication satellite called westar in 1974: advances is satellite technology in 70"s dramatically changed cable companies by: Creating reliable system for distribution of programming to cable companies across the nation.