Scrappy-Doo 1979 had begun to sink to the point of cancellation threats from ABC, who were considering between choosing between Scooby-Doo and an unnamed pilot From Ruby-Spears Enterprises, whose pilot Evanier had also written. He successfully boosted the show's ratings and kept the show alive. Scrappy has a contradicted origin. Originally as shown in the introduction of the series, Scrappy only met his Uncle Scooby as a puppy. However, the December 1980 episode of "Scooby-Doo and Scrappy-Doo" ("Scrappy's Birthday") depicts Scrappy-Doo's birth with both Scooby and Shaggy in attendance. Born at St. Bernard's Hospital to Scooby-Doo's sister Ruby-Doo on December 20,
The Scooby-Doo Show other half of the hour was filled by "Dynomutt, Dog Wonder", a new Hanna-Barbera cartoon about a superhero named Blue Falcon and his goofy mechanical canine sidekick, Dynomutt. The Mystery, Inc. gang made guest appearances in three of the "Dynomutt, Dog Wonder" segments. The show was renamed to "The Scooby-Doo / Dynomutt Show" when ABC added a rerun of "Scooby-Doo, Where Are You!" to the show in November 1976. In 1977, ABC had a programming block called "Scooby's All-Star Laff-A-Lympics". The "Scooby-Doo" segment of this two-hour block included 8 new episodes of "Scooby-Doo" (two of which featured Scooby-Dum and one