From 1987 to 1988, Hanna-Barbera Productions produced "Hanna-Barbera Superstars 10", a series of syndicated television films 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 films: "Scooby-Doo Meets the Boo Brothers" (1987), "Scooby-Doo and the Ghoul School" (1988), and "Scooby-Doo and the Reluctant Werewolf" (1988). These three films took their tone from the early-1980s "Scooby-Doo and Scrappy-Doo" entries, and featured the characters encountering actual monsters and ghosts rather than masqueraded people. Scooby-Doo and Shaggy later appeared as the narrators of the television film "Arabian Nights", originally broadcast by TBS in 1994, Don Messick's final outing as the original voice of Scooby-Doo.