Episode 6 - Scared A Lot in Camelot / Sinister Symphony
Air Date: Oct 16, 1976
Scared a Lot in Camelot (Scooby-Doo): Shaggy's zillionaire Uncle buys a haunted mansion and then disappears.
Sinister Syphony (Dynomutt):
Manyface, a villain of many disguises, used a sinister symphony to send Big City to sleep, stripping it clean.