The Beverly Hillbillies 3x28

Elly and Jethro join the beatniks at the Parthenon West, and Granny tries to get them out. But her attempts fail, and she becomes a beatnik herself, after inventing "The Tater Digger,” a new dance. Jed is all for the young ones expressing themselves, but once he sees Granny dressed the way she is and acting the way she is, he changes his mind.