Now president of ABC, Fred Silverman made a deal with Hanna-Barbera to bring new episodes of "Scooby-Doo" to the ABC Saturday-morning lineup, where the show went through almost yearly lineup changes. For their 1976–77 season, 16 new episodes of Scooby-Doo were 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 in 1973. Pat Stevens took over her role as the voice of Velma.