Scooby-Doo, Where Are You! and Shaggy Rogers—and the title character, a semi-anthropomorphic Great Dane named Scooby-Doo. The group travels in a blue and green van with two orange flowers named the Mystery Machine, solving mysteries involving several local legends; in doing so, they discover that the perpetrator is almost invariably a disguised person who seeks to exploit the legend for their personal gain. "Scooby-Doo, Where Are You!" is the first incarnation of what would eventually become a long-running media franchise, which primarily consists of subsequent animated series, several films, and related merchandise. "Scooby Doo, Where Are You!" was the result of CBS and Hanna-Barbera's
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