The radio broadcasting of music and talk intended to reach a dispersed audience started experimentally around 1905–1906, and commercially around 1920 to 1923. VHF (very high frequency) stations started 30 to 35 years later.
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History edit · The earliest · The · The · By about 1920, valve technology had matured to the point where radio broadcasting was quickly becoming viable. · In The ...
An entertainment broadcasting venture based in Wilkinsburg, Pennsylvania, became the first commercial radio station, KDKA, in 1920. The station WWJ, in ...
The Radio Act of 1927 creates the Federal Radio Commission to oversee radio broadcasting, replacing the Department of Commerce in that role. (The FRC is itself ...
Radio networks began in 1922 and provided great economies of scale in both content and advertising. Local radio stations received content from their network ...