The fourth season of The Fresh Prince of Bel-Air premiered on September 20, 1993 and concluded on May 23, 1994. This is the first season to feature Daphne Maxwell Reid as Vivian Banks after Janet Hubert-Whitten's departure. With 26 episodes, this is the longest season of The Fresh Prince of Bel-Air. Season 4 was originally meant to be the final season of the show, but NBC renewed the show for two more seasons. From Wikipedia
