The Scooby-doo Show -

: Fred designs a complex, Rube Goldberg-like trap to catch the creature, which Shaggy and Scooby often inadvertently help spring.

While following a "strictly formulaic" approach, this incarnation is noted for having more complex mysteries and introducing new members of Scooby’s family: The Scooby-Doo Show

: A monster or ghost is introduced, often terrorizing a local community or business. : Fred designs a complex, Rube Goldberg-like trap