Laff-A Lympics (1977)
Each episode of this series include multiple segments: The first and last were "Laff-A-Lympics" segments, the other ones were "Captain Caveman and the Teen Angels", "Scooby-Doo" and "Dynomutt" segments. The "Laff-A-Lympics" segments feature 45 Hanna-Barbera cartoon characters (classic and otherwise)