S1·E34 The Psychiatrist Gets Clampetted

Jethro finally gets his bill of health from Dr. Twombly so he can graduate the fifth grade. The psychiatrist shows great interest in Granny's home remedies for various ailments. Drysdale brings him to the Clampetts' just as Granny shows Pearl how to use a love potion, so everyone thinks Twombly's interest in Granny is love.