Bewitched (1964)

S02E18 And Then There Were Three

The Stephens family celebrates the arrival of their new baby, Tabitha. Endora is curious to catch a glimpse of her as an adult, but Darrin firmly opposes the idea. Meanwhile, Serena, Samantha's playful cousin who resembles her, arrives for a visit. Darrin, confused by the resemblance, mistakenly believes that Serena is the grown-up Tabitha, leading to a series of comedic misunderstandings and magical mishaps as the family navigates the chaos of their expanding household.