Mystery Island is a live-action sci-fi adventure serial produced by Hanna-Barbera Productions that originally aired as a segment on The Skatebirds from September 10, 1977, to January 21, 1978, on CBS. In the fall of 1979, Mystery Island continued to air on The Skatebirds when the show returned to CBS in a shortened half-hour version on Sunday mornings until January 25, 1981. In September 2005, episodes resurfaced on Boomerang and were rebroadcast as part of Captain Caveman and the Teen Angels.