The Jetsons
The Jetsons Meet the Flintstones is a 1987 animated crossover made-for-television film produced by Hanna-Barbera for syndication as part of the "Hanna-Barbera Superstars 10" series. The two-hour special stars the cast of the Hanna-Barbera sitcoms "The Flintstones" and "The Jetsons" as they cross paths following a time travel experiment gone wrong.