The Flintstones (1960)

S1E13 The Drive-in

Frustrated with their current jobs, Fred and Barney hatch a secret plan to purchase a restaurant. However, Fred soon finds himself in hot water when Wilma becomes suspicious. She questions him about the two young carhops who are reaching out to him and the mysterious messages he's receiving about two tons of dino-burger meat. Wilma's curiosity puts Fred in a tricky situation as he tries to keep their plans under wraps.