Bewitched (1964)

Season 4: Episode 3

To get in good graces with an Italian client, Darrin must learn how to speak Italian. Endora, anxious for Samantha to travel Europe again, gives Darrin a perfect Italian tongue. Her spell, however, is too strong, and ""Dino"" no longer understands English. His new clients begin to think that Darrin is mocking them, and Samantha interrupts Endora's bath and demands she remove the spell.