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! Curse of the Lake Monster Scooby-Doo! Curse of the Lake Monster Scooby-Doo! Curse of the Lake Monster (also known as Scooby-Doo 4 or Scooby-Doo 4: Curse of the Lake Monster) is a 2010 American made-for-television comedy film directed by Brian Levant for Cartoon Network and based on the Saturday morning cartoon series "Scooby-Doo" by Hanna-Barbera. It is the fourth installment in the "Scooby-Doo" live-action film series and a sequel to the 2009 film "Scooby-Doo! The Mystery Begins", whose cast reprise their roles again here. The film was shot in Santa Clarita, California and Sherwood Country Club in Thousand Oaks, California and premiered on October 16,