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 and the Cyber Chase Chase" was released October 9, 2001 for both VHS and DVD formats. The film was re-released on Blu-ray on March 29, 2011. This was the first animated Scooby-Doo film to be produced in the high-definition format. "Scooby-Doo! and the Legend of the Vampire" was released on March 4, 2003. Scooby-Doo and the Cyber Chase Scooby-Doo and the Cyber Chase is a 2001 direct-to-video animated comic science fiction mystery film, and the fourth in a series of direct-to-video animated films based on Hanna-Barbera's "Scooby-Doo" Saturday morning cartoons. It was released on October 9, 2001. It features the Mystery, Inc. gang, which