Bewitched (1964)

S2E7 Trick or Treat

In this Halloween-themed episode, Endora transforms Darrin into a werewolf after he opposes Samantha's attendance at a witches' Halloween gathering. To make matters worse, Darrin must host a new client for McMann and Tate in his furry form! Samantha confronts Endora, accusing her of embodying the typical witch stereotype, which prompts Endora to lift the spell and revert Darrin back to normal.