July 3, 1974-July 24, 1974; December 4, 1974-December 28, 1976. Tony Orlando and Dawn hosted a four-week summer replacement for "The Sonny and Cher Comedy Hour"; the series resurfaced later that year. During the 1975-1976 season regulars included Alice Nunn, Lonnie Schorr, and Lynn Stuart. In the fall of 1976 the show was retitled "Tony Orlando and Dawn Rainbow Hour"; the regulars included George Carlin, Susan Lanier, Bob Holt, Edie McClurg, Adam Wade, and Nancy Steen.
