Save by the Bell is an American sitcom that originally aired between 1989 and 1993. The series is a retooled version of the 1988 series Good Morning, Miss Bliss, which later retconned into the history of Saved by the Bell. The series follows the exploits of several students at Bayside High School, along with their principal. The show stars Mark-Paul Gosselaar, Dustin Diamond, Lark Voorhies and Dennis Haskins, who appeared in Good Morning, Miss Bliss, as well as Tiffani-Amber Thiessen, Elizabeth Berkley and Mario Lopez, who joined the cast for Saved by the Bell. The show brought fame to the cast members and launched most of their careers.