Episode Title:
The X-Ray Story.
Episode Description:
Dino's x-rays are mistaken for Fred's. As a result, Wilma, Betty, and Barney think Fred has the illness Dino has ("dinopeptitis"). This makes them keep Fred awake for 24 hours straight and take a trip to the roller skating rink, where Fred falls asleep on his skates despite having twenty or thirty cups of coffee.
