The Gruesomes (The Flintstones) Manor which is next door to the Flintstones. Trying to be neighborly, Fred and Barney agree to babysit Gobby, whose strange pets (including Schneider the spider and Occy the octopus) make for a tortuously eventful evening. After spending the evening at The Gruesomes' haunted mansion, Fred angrily tells Wilma that they are moving away from Bedrock. He then changes his mind when he sees Pebbles watching the "At Home With the Gruesomes" TV show. The family reappears in the episode "The Hatrocks and the Gruesomes". The Hatrocks, who are hillbilly friends of Fred, come to visit but soon become an
The Jetsons Meet the Flintstones Fred and Barney repair their friendship, and George offers his partnership with Mr. Slate to give them their jobs back. Just as they are about to leave for home, Elroy tells them the time machine is broken and cannot be repaired. Fortunately, they're able to return to the Stone Age because Fred's car absorbed the time machine's "quadrapotents". The Flintstones and the Rubbles then bid a fond farewell to the Jetsons and are sent back to the Stone Age. The special is referenced in "The Simpsons" episode "A Star Is Burns". Bart Simpson is watching "The Flintstones Meet the Jetsons"