Bewitched (1964)

S1E31 That Was My Wife

In the episode titled "That Was My Wife," Samantha and Darrin enjoy a night at a hotel, during which Samantha temporarily dyes her hair brown. Larry, seeing them together, mistakenly believes Darrin is cheating on Samantha. He shares his suspicions with Louise, who then confronts Darrin at the hotel, aiming to persuade him to end his supposed affair. Larry, witnessing this encounter, mistakenly assumes that Louise is the other woman in Darrin's life, leading to further misunderstandings.