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, Where Are You! Roberts, and were performed by Roberts, who also made a new recording of the "Scooby Doo, Where Are You!" theme song for the second season. The series' theme song has been covered by several subsequent artists, including Matthew Sweet for the 1995 TV special and album ""; Third Eye Blind for the 1998 film "Scooby-Doo on Zombie Island"; Billy Ray Cyrus for "Scooby-Doo! and the Witch's Ghost" (1999); Jennifer Love Hewitt for "Scooby-Doo and the Alien Invaders" (2000); the B-52's (Cindy, Kate and Fred) for "Scooby-Doo and the Cyber Chase" (2001); MxPx for the live-action "Scooby-Doo" film (2002); and Krystal