Bewitched - Season 6 - Eps 20: Super Arthur
Uncle Arthur's magic is going out of whack, and Dr. Bombay helps him out by giving him a pill. This pill, however, makes Arthur become anything he thinks off. After being transformed a few times, Samantha decides to take him outside for some air. Arthur states that he feels like Superman, and all of a sudden, he has a Superman suit and flies in the air! This cause major pandemonium in the neighborhood, and Samantha convinces Darrin and Larry that it is great campaign for a client they are working with.
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