The New Scooby-Doo Mysteries
Cartoon Series: Season 01; Episode #08: "Halloween Hassle at Dracula's Castle" (10/28/1984)
The gang decided to party at Dracula's Castle, and it turns out they are the only ones who decided to wear costumes. All the other guests decided to wear their everyday monster clothes. Wolf-man is turned into a wolf cub. (Ar/RN)
-- Stonegate & Dragonaide
Scooby and Scrappy-Doo
Cartoon Series: Season 03; Episode #07: "Scooby Dooby Goo" (part of "The 13 Ghosts Of Scooby-Doo") (10/03/1981)
Shaggy & Scooby are trapped in a steam box, which is part of a regimen to rejuvenate their tired bones. it does - all the way.
Scooby Doo, Where are you ?
Cartoon Series: Season 01; Episode #06: "What The Hex Is Going On?" (1969-1972)
A weekend trip to the gang's friend Whether by's estate quickly turns into a mystery when Sharon's uncle Stewart vanishes--then turns up, aged into an old man!
Things get worse when he tells them of the curse lain on him by the ghost of Elias Kingston, supposed heir to the Whether by fortune, then Sharon disappears, and Uncle Stewart vanishes again, only to turn up aged to the point of being a skeleton!