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It all started when Thomas Edison invented the phonograph. This opened up the idea of receiving and playing professionally produced entertainment at home. As the years went by, there have been many advances in technology and ways to transmit signals through the air waves into people's homes. After all, this is what it's mostly used for, to get programs into people's homes. Whether it be movies, commercials, instructional videos, music, PSA's, news, sports. Whoever creates these programs have the intention of letting somebody else watch them.
Today in America our current broadcast standard is a 525 line/60 field per second based system called the NTSC (National Television systems Committee) . This committee was established to insure order in the development process within the industry that would be accepted by the FCC. This standard was created in the 40's and 50's. Each receiver sold to the American public must conform to received the NTSC signal. This signal has proved to be a durable way of transmitting information for 50 years.
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