ABC, CBS both have early corporate ties to NBC

AP News
Posted: Nov 14, 2009 10:45 AM

The three original broadcast networks still around today can all be traced back to the National Broadcasting Co.

NBC began as a radio network in 1926, formed by General Electric Co., Westinghouse Electric Co. and Radio Corporation of America after buying broadcast assets from AT&T.

RCA became sole owner in 1932, until GE bought it back in 1986.

NBC initially ran two radio networks but had to shed one of them in 1943 under pressure from the government. The spinoff became ABC.

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Decades later, in 1995, Westinghouse bought CBS and is now known as CBS Corp., after shedding energy and other businesses under the Westinghouse brand.