The Scooby-Doo/Dynomutt Hour: Season 1 (1976) — The Movie Database (TMDB)
Scooby-Doo History on X: On this day in 1976, “There's a Demon Shark in the Foggy Dark” first aired! #Scoobydoohistory / X
The Scooby-Doo/Dynomutt Hour S1E12 (1976) - Backdrops — The Movie Database (TMDB)
The Scooby-Doo/Dynomutt Hour (1976)
The Scooby-Doo/Dynomutt Hour: Season 1 (1976) — The Movie Database (TMDB)
The Scooby-Doo/Dynomutt Hour (TV Series 1976–1978) - Episode list - IMDb
The Scooby-Doo/Dynomutt Hour A Frightened Hound Meets Demons Underground (TV Episode 1976) - IMDb
The Scooby-Doo/Dynomutt Hour S1E12 (1976) - Backdrops — The Movie Database (TMDB)
List of The Scooby-Doo Show Episodes., Scooby Mania Wiki
The Scooby-Doo/Dynomutt Hour (1976)
The Scooby-Doo/Dynomutt Hour (TV Series 1976–1978) - Episode list - IMDb
The Scooby-Doo/Dynomutt Hour: Season 1 (1976) — The Movie Database (TMDB)
There's a Demon Shark in the Foggy Dark, Hanna-Barbera Wiki
There's a Demon Shark in the Foggy Dark, Scoobypedia