Scooby's Mystery Funhouse was a 30-minute Saturday morning animated package program combining reruns of Scooby-Doo and Scrappy-Doo episodes from the following shows: āThe Richie Rich/Scooby-Doo Show āThe Scooby & Scrappy-Doo/Puppy Hour āThe New Scooby and Scrappy-Doo Show āThe New Scooby-Doo Mysteries The show was produced by Hanna-Barbera Productions. Scooby's Mystery Funhouse aired from September 7, 1985 to January 25, 1986 on ABC. A total of 63 episodes were rebroadcast in 21 half-hour formats.