In 1920, radio was first developed, primarily for use by the military, strictly for sendingHistory of the Media – Old Radios messages from one location to another. David Sternoff, the then-president of RCA, first had the idea to sell radio sets to consumers, or what were then called radio receivers. However,
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consumers needed a reason to buy radios, so RCA was the first to set up radio stations all over the country. Between 1920 and 1922, 400 radio stations were set up, starting with KBKA in Pittsburgh. Stations were also set up by universities, newspapers, police departments, hotels, and labor unions.By 1923, there were 600 radio stations across the United States, and $83 million worth of sets had been sold.The biggest difference in radio before and after 1923 was that the first advertising was not heard on the radio until 1923. RCA at the time was made up of four companies: