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Season One
- "Ghastly Ghost Town" (guest-starring The Three Stooges)
- "The Dynamic Scooby-Doo Affair" (guest-starring Batman and Robin)
- "Wednesday Is Missing" (guest-starring The Addams Family)
- "The Frickert Fracas" (guest-starring Jonathan Winters)
- "Guess Who's Knott Coming to Dinner?" (guest-starring Don Knotts)
- "A Good Medium is Rare" (guest-starring Phyllis Diller)
- "Sandy Duncan's Jekyll and Hyde" (guest-starring Sandy Duncan)
- "The Secret of Shark Island" (guest-starring Sonny & Cher)
- "The Spooky Fog of Juneberry" (guest-starring Don Knotts)
- "The Ghost of Bigfoot" (guest-starring Laurel and Hardy)
- "The Ghost of the Red Baron" (guest-starring The Three Stooges)
- "The Ghostly Creep from the Deep" (guest-starring The Harlem Globetrotters)
- "The Haunted Horseman of Hagglethorn Hall" (guest-starring Davy Jones)
- "The Phantom of the Country Music Hall" (guest-starring Jerry Reed)
- "The Caped Crusader Caper" (guest-starring Batman and Robin)
- "The Loch Ness Mess" (guest-starring The Harlem Globetrotters)
Season Two
- "The Mystery of Haunted Island" (guest-starring The Harlem Globetrotters)
- "The Haunted Showboat" (guest-starring Josie and the Pussycats)
- "Mystery in Persia" (guest-starring Jeannie and Babu)
- "The Spirit Spooked Sports Show" (guest-starring Tim Conway)
- "The Exterminator" (guest-starring Don Adams)
- "The Weird Winds of Winona" (guest-starring Speed Buggy)
- "The Haunted Candy Factory" (guest-starring Mama Cass Elliot)
- "The Haunted Carnival" (guest-starring Dick Van Dyke)