Scooby's All Star Laff-A-Lympics is a two-hour Saturday morning animated series produced by Hanna-Barbera Productions that aired from September 10, 1977 to September 2, 1978 on ABC. It was also the first such 120-minute Saturday morning cartoon in television network history, and contained the following segments: The Scooby-Doo Show (2nd season), Laff-A-Lympics (1st season), The Blue Falcon & Dynomutt and Captain Caveman and the Teen Angels (1st season)