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Friends is an American television sitcom created by David Crane and Marta Kauffman, which aired on NBC from September 22, 1994, to May 6, 2004. The show revolves around six friends who live and work in New York City: Rachel Green, Monica Geller, Phoebe Buffay, Joey Tribbiani, Chandler Bing, and Ross Geller. Marlo Thomas guest-starred as Rachel's mother, Sandra Green, in the eighth season of the show.