When does The New Scooby and Scrappy-Doo Show return?

The New Scooby and Scrappy-Doo Show was produced by Hanna-Barbera Productions. It premiered on September 10, 1983, and ran for two seasons on ABC. Daphne Blake was added back to the cast after a three-year absence. Fred Jones and Velma Dinkley briefly return to the show after four years.