The Flintstones Season 5 Episode 7

In order to collect an inheritance from is uncle, J. Giggles Flintstone, Fred must spend on night at his uncle’s spooky mansion. He and Barney make it through the night (no thanks to the creepy servants), only to find that Giggles is very much alive, and merely testing Fred’s worth as an heir. Fred blows any chance of an inheritance by chasing his uncle through the house in a maniacal rage.