Following the breakout success of the original show, Saved By the Bell spawned a slew of offshoots, including Saved By the Bell: The College Years, which followed our familiar cast of characters as they conveniently attended the same college following their high school graduation. There was also Saved By the Bell: The New Class, which brought back Mr. Belding and Screech to help shepherd in a new generation of teens. In between were some made-for-TV movies that sent the cast to Hawaii and marked the marriage of Zack and Kelly. In retrospect, it's easy to be jaded about all this Saved By the Bell media—but the truth is, even the original Saved By the Bell was a spinoff of sorts.
Before it all, there was Good Morning, Miss Bliss, which focused on the titular teacher (played by Hayley Mills) and lacked familiar faces like Kelly, Slater, or Zack. Interestingly, the pilot featured a collection of future stars, including Seaquest DSV star Jonathan Brandis, Beverly Hills 90210's Brian Austin Green, and even Steve Urkel himself, Jaleel White. Along with a different Mr. Belding (played by Oliver Clark), Miss Bliss and its pilot navigate some pretty heavy stuff, including the discovery that Jonathan Brandis' character has a dying brother.
The show changed quickly after that episode, leading to a season of Good Morning, Miss Bliss that brought in characters like Zack, Lisa, and Screech instead of the students seen in the pilot. Unhappy with the ratings, NBC reinvented the series yet again as—you guessed it—Saved By the Bell, complete with the cast fans would come to know and love.