Scooby-Doo the head story editor on "Scooby-Doo" since 1983. Following the first season of "A Pup Named Scooby-Doo", Ruegger and much of his unit defected from Hanna-Barbera to Warner Bros. Animation to develop "Steven Spielberg Presents Tiny Toon Adventures" and later "Animaniacs", "Pinky and the Brain", and "Freakazoid!". From 1987 to 1988, Hanna-Barbera Productions produced "Hanna-Barbera Superstars 10", a series of syndicated TV movies featuring their most popular characters, including Yogi Bear, Huckleberry Hound, The Flintstones and The Jetsons. Scooby-Doo, Scrappy-Doo and Shaggy starred in three of these movies: "Scooby-Doo Meets the Boo Brothers" (1987), "Scooby-Doo and the Ghoul School" (1988),
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