*Quickly becomes popular on ships after the Titanic. |
*Quickly becomes popular on ships after the Titanic. |
*Commercial (USA) or governmental (Europe) station networks *Birth of the soap opera |
*Commercial (United States) or governmental (Europe) station networks *Birth of the soap opera |
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Radio's prehistory (19th century)
Spark Gap Wireless Telegraphy (1896--1920)
Audio Broadcasting (1915--)
Television
Internet Radio (1995--)