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The Muppet Show featured Don Knotts as a guest in the 1970s. The show, which aired from 1976 to 1981, was a variety series starring the Muppets, a group of puppet characters created by Jim Henson. Knotts appeared in the show's second season, in an episode that aired in 1977. He played himself, and interacted with the Muppets in a variety of sketches and musical numbers.