Scooby-Doo the series and the billing, in an attempt to boost "Scooby-Doo"s slipping ratings. The 1979–80 episodes, aired under the new title "Scooby-Doo and Scrappy-Doo" as an independent half-hour show, succeeded in regenerating interest in the show. Lennie Weinrib voiced Scrappy in the 1979–80 episodes, with Don Messick assuming the role thereafter. Marla Frumkin replaced Pat Stevens as the voice of Velma mid-season. As a result of "Scooby-Doo and Scrappy-Doo's" success, the entire show was overhauled in 1980 to focus more upon Scrappy-Doo. At this time, Scooby-Doo started to walk and run anthropomorphically on two feet more often, rather than on
Scooby-Doo (character) would be renamed "Scooby-Doo" by Fred Silverman, CBS's head of daytime programming, between its unsuccessful first pitch and a second pitch which earned the show a green light. Silverman came up with the name from the syllables "doo-be-doo-be-doo" in Frank Sinatra's hit song "Strangers in the Night". Taking notes from a Hanna-Barbera colleague who was also a breeder of Great Danes, Production designer Iwao Takamoto designed the Scooby-Doo character with a sloping chin, spots, a long tail, a sloped back, and bow legs – all traits in direct opposition to those of a prize-winning purebred Great Dane. In defining the