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 Samurai Sword Scooby-Doo! and the Samurai Sword Scooby-Doo! and the Samurai Sword is a 2009 direct-to-DVD animated comedy mystery martial arts film, as well as the thirteenth entry in a series of direct-to-video animated films based upon the "Scooby-Doo" Saturday morning cartoon franchise. In the United States, the DVD sold 163,890 units in its first week and as of January 2014, it has sold approximately 524,725 units. This is the last direct-to-video Scooby-Doo film to use the bright animation style keen to the "What's New, Scooby-Doo?" TV series. It was also the last "Scooby-Doo" production featuring Casey Kasem as Shaggy Rogers before