Scooby-Doo, Where Are You! is an American animated comedy television series created by Joe Ruby and Ken Spears and produced by Hanna-Barbera for CBS. The series premiered as part of the network's Saturday morning cartoon schedule on September 13, 1969, and aired for two seasons until October 31, 1970. In 1978, a selection of episodes from the later animated series Scooby's All-Star Laff-A-Lympics and The Scooby-Doo Show were aired on ABC under the Scooby-Doo, Where Are You! title name, and was released in a DVD set marketed as its third season.