Years ago, from what I remember, every time a Flintstones episode ended and there were the end credits, they would show and say: “Coming up next, it’s Scooby-Doo.”

In that image screen, they would show Scooby-Doo having put on leaves in his ears and making a scary, angry face with his teeth shown while acting monstrous repeatedly, probably to show the gang what he had seen, as usual.

However, in all my years of watching such a show, never once have I seen Scooby-Doo do that in either episodes. Was it even in an episode I missed or a movie I had never seen before? I don’t know. I’m not sure.

Therefore, I need help knowing the name of that one Scooby-Doo episode or movie very soon, please?