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Investigation Discovery (often abbreviated ID) is an American pay television network owned by Discovery, Inc. that features documentary-style programming dealing with true crime topics. As of February 2015, approximately 86,062,000 American households (73.9% of households with television) receive Investigation Discovery.
The channel launched in 1996 under the name Discovery Civilization Network: The World History and Geography Channel. It was one of four digital cable companion networks rolled out by Discovery Communications simultaneously in October 1996. Plans for the channel had surfaced in November 1994, when its working name was “Time Traveler