Bewitched - Season 5 - Eps 8: Is it Magic or Imagination?
Mrs. Stephens drops in unexpectantly, and insists Samantha enter a slogan contest to win a trip to Tahiti. And she wins! Of course, Larry Tate's none to happy as it turns out to be one of their biggest clients. The typical Stephen's fight occurs. Darrin's furious! He thinks Samantha used witchcraft. Darrin heads to the neighborhood bar, gets drunk, and tells the he's married to a witch. Darrin comes around when Samantha's slogan is rejected after all.
About Bewitched

Title: Bewitched
First Air Date: 1964-09-17
Last Air Date: 1972-03-25
Status: Ended
Rating: 7.861/10 (from 695 votes)
Language: EN
Seasons: 8
Total Episodes: 254
Network: ABC
Genres: Sci-Fi & Fantasy, Comedy, Family, Drama
Production Companies: Columbia Pictures Television, Screen Gems
Synopsis
Samantha Stephens is a seemingly normal suburban housewife who also happens to be a genuine witch, with all the requisite magical powers. Her husband Darrin insists that Samantha keep her witchcraft under wraps, but situations invariably require her to indulge her powers while keeping her bothersome mother Endora at bay.
Cast

Elizabeth Montgomery
Samantha Stephens

Dick Sargent
Darrin Stephens

Agnes Moorehead
Endora

David White
Larry Tate