Bewitched (1964)

S4E3 Business, Italian Style

In an effort to impress an Italian client, Darrin decides to learn Italian. Endora, eager for Samantha to explore Europe once more, casts a spell to enhance his language skills. Unfortunately, the enchantment backfires, leaving Darrin, now "Dino," unable to understand English at all. This miscommunication leads the clients to believe Darrin is ridiculing them. Frustrated by the chaos, Samantha interrupts Endora during her bath and insists that she reverse the spell to save Darrin from further embarrassment.