Scooby-Doo Goes Hollywood (1979) on Netflix

Plot summary

The Mystery Inc. gang has solved enough mysteries to become famous, and now has its own television series in Hollywood, California, based on those adventures. During a scene with the Crabby Creature of Creepy Crag, Scooby and Shaggy land in a catapult, and the pair tire of repeating the same routine. They want to be real movie stars instead. Shaggy shows network president C.J. a pilot called How Scooby Won the West, in which Sheriff Scooby and Deputy Shaggy face the ornery Jesse Rotten. C.J. dismisses it as a joke and throws them out laughing. The gang learns that Scooby intends to leave, and though Shaggy describes the fame awaiting him, they remain unconvinced and want him back.