Double Trouble (1984)

Sitcom about the antics between two twins, Kate and Allison (played by real life twins Liz and Jean Segal). Allison was always the serious outgoing sister, while Kate was more fun and laid-back. In the first season, the twins lived in Des Moines with the father Art, who ran a health club/dance studio. In the second season, the twins headed to New York City to live with their aunt Margo (who wrote children's books). Allison enrolls in design school trying to win points from hard-to-impress Mr. Arrechia, while Kate tries to break into acting.