Scooby-Doo featuring episodes of Hanna-Barbera's new "Richie Rich" cartoon, adapted from the Harvey Comics character. From 1982 to 1983, "Scooby-Doo and Scrappy-Doo" were part of "The Scooby-Doo/Scrappy-Doo/Puppy Hour", a co-production with Ruby-Spears Productions which featured two "Scooby and Scrappy" shorts, a "Scrappy and Yabba-Doo" short featuring Scrappy-Doo and his Western deputy uncle Yabba-Doo, and "The Puppy's New Adventures", based on characters from a 1977 Ruby-Spears TV special. Beginning in 1980, a half-hour of reruns from previous incarnations of "Scooby-Doo" were broadcast on ABC Saturday mornings in addition to first-run episodes. Airing under the titles "Scooby-Doo Classics", "Scary Scooby Funnies", "The Best
The Scooby-Doo Show of which, "The Chiller Diller Movie Thriller", guest-starred Scooby-Doo and Scooby-Dum's distant female cousin, Scooby-Dee), plus reruns from the 1976–1977 season. The name of the block was changed to "Scooby's All-Stars" for the 1978–1979 season, when the program was shortened to an hour and a half, after the cancellation of "Dynomutt". 16 half-hours of "Scooby-Doo" (featuring just the original five characters) were produced this season, and began airing earlier in the morning before the "Scooby's All-Stars" block as a third season of "Scooby-Doo, Where Are You!" in September. "Scooby's All-Stars" instead aired reruns of the 1976 and 1977 episodes for