Scooby-Doo and Scrappy-Doo (1980 TV series) "The Richie Rich/Scooby-Doo Show". Following the final first-run episode on October 31, reruns from the first seasons were rerun alongside episodes from the second season. The following ran in 1982, as segments of "The Scooby & Scrappy-Doo/Puppy Hour". All segments were written and storyboarded at Hanna-Barbera, but were produced and animated by then-sister company Ruby-Spears Enterprises. Note: The third episode for each air date listed is the "Scrappy and Yabba-Doo" episode from that date. Warner Home Video released "The Richie Rich/Scooby-Doo Show: Volume 1" on DVD in Region 1 on May 20, 2008. All three seasons are available for download
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