Scooby-Doo and Scrappy-Doo (1979 TV series) threatening cancellation for the show, whose ratings were in decline. ABC was going to choose between two shows-Scooby-Doo or an unnamed pilot from Ruby Spears Enterprises. Therefore, for its 1979–1980 season, "Scooby-Doo" was given a major overhaul, adding the character of Scooby's nephew Scrappy-Doo, voiced by Lennie Weinrib, and changing the name of the show to "Scooby-Doo and Scrappy-Doo". Although still present in these episodes, the characters of Fred, Daphne, and Velma became less essential to the plot and Shaggy, Scooby and Scrappy were the main focus. Marla Frumkin took over Pat Stevens' role as Velma Dinkley towards the end
The Scooby-Doo Show in their initial run, and none of the 1978 episodes were presented under the "Where are You!" title for twenty-eight years following their broadcast debuts (the cartoons on the DVD set still feature the syndicated "Scooby-Doo Show" opening and closing credits). All forty "Scooby-Doo Show" episodes are available for purchase and download from the iTunes Store, as either individual episodes or a season set. The 1976 and 1977 episodes are grouped under "The Scooby-Doo Show", while the 1978 episodes are listed under "Scooby-Doo, Where are You!" The Scooby-Doo Show The Scooby-Doo Show is an American animated mystery comedy series. The