The Jetsons Meet the Flintstones

Elroy Jetson invents a time machine that takes his family back to prehistoric times, where they meet the Flintstone family.

Cast:George O'Hanlon , Henry Corden , Penny Singleton , Jean Vander Pyl , Jon 'Bowzer' Bauman , Mel Blanc , Daws Butler , Hamilton Camp , Julie McWhirter , Don Messick , John Stephenson , Brenda Vaccaro , Janet Waldo , Frank Welker , Patric Zimmerman