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The Truth Behind the Sitcom Scandals: Happy Days, The Jeffersons, and One Day at a Time - Preview Go deep behind the scenes of the best sitcoms of all time, as cast members recount the stories you’ve never heard before from "Happy Days," "The Jeffersons," and "One Day at a Time." Channel: Bio Category: History Video Length: 0 Date Found: April 05, 2011 Date Produced: March 30, 2011 View Count: 72