1976-1981 (Syndicated). The Muppets, created by Jim Henson and company, starred in their own half-hour comedy-variety show. Each week a guest celebrity appeared. The most popular first-run syndicated series in TV history.
It's "Anchors Aweigh" for the Muppets when guest Glenda Jackson arrives as a pillaging pirate, and hijacks the theater out to sea.