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
Scooby-Doo of Kids' WB on The WB Network and its successor, The CW Network, from 2002 until 2008. "Scooby-Doo! Mystery Incorporated" aired on Cartoon Network from 2010 to 2013, and "Be Cool, Scooby-Doo!" aired on Cartoon Network from 2015 to 2018. Repeats of the various "Scooby-Doo" series are broadcast frequently on Cartoon Network's sister channel Boomerang in the United States as well as other countries. In 2013, "TV Guide" ranked "Scooby-Doo" the fifth greatest TV cartoon. In 1968, parent-run organizations, particularly Action for Children's Television (ACT), began protesting what they perceived as excessive violence in Saturday-morning cartoons. Most of these shows