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
Scooby-Doo joined with a new Hanna-Barbera show, "Dynomutt, Dog Wonder", to create "The Scooby-Doo/Dynomutt Hour" (the show became "The Scooby-Doo/Dynomutt Show" when a bonus "Scooby-Doo, Where Are You!" rerun was added to the package in November 1976). Joe Ruby and Ken Spears, now working for Silverman as supervisors of the ABC Saturday morning programs, returned the program to its original "Scooby-Doo, Where are You!" format, with the addition of Scooby's dim-witted country cousin Scooby-Dum, voiced by Daws Butler, as a recurring character. The voice cast was held over from "The New Scooby-Doo Movies" save for Nicole Jaffe, who retired from acting