The Flintstones: Season 5, Episode 19 - ProjectFreeTV

5 - 19: The Hatrocks and the Gruesomes

The Hatrocks come to visit the Flintstones after they declare their feud over, and wind up overstaying their welcome. The Flintstones then recruit their neighbors, the Gruesomes, to scare the Hatrocks away by performing "bug music".