At the end of Saved By The Bell, it looked like the gang would all end up at different colleges. But in the pilot of Saved by the Bell: The College Years, we saw that Zack, Screech and Slater ended up going to California University in the San Francisco Bay Area, presumably in Berkeley. This was the third, and last incarnation of Saved by the Bell proper. After the filming of the pilot, Tiffani-Amber Thiessen (Kelly Kapowski) decided to rejoin the cast of Saved By The Bell: The College Years, and was seen in series for the rest of its run.
The show introduced four new characters Leslie Burke (Anne Tremko) was the daughter of rich alumus parents who wanted to live up to their expectations. Alex Tabor (Kiersten Warren) was an aspiring actress and drama queen, who yearned for attention any way shhe could gather it. Resident Advisor Michael Rogers (Bob Golic) was a retired NFL PLayer who returned to California University to earn the degree he never completed. Professor Jeremy Laskey (Patrick Fabian) was a young professor, whose charm and antics cause he and the gang both heartache and pain.
Saved By The Bell: The College Years ran 18 episodes, and a pilot, but after this 19 episode run, NBC cancelled the show due to low ratings, and it showed its last episodes as a 1-hour finale, on February 8, 1994. In the finale, Zack and Kelly were preparing to get married. Saved By The Bell: The College Years was ended abruptly, before Zack and Kelly's marriage could be filmed. So Peter Engel seems to have convinced NBC to let him film a 2 hour TV movie to tie up the loose ends. In the 1994 TV movie, Saved by the Bell: Wedding In Las Vegas, which aired in in primetime on Friday, October 7, 1994 at 8:00 pm EST on NBC, the gang heads off to Las Vegas to witness the marriage of Zack and Kelly. So ended the run of the original Zack Morris based "Saved by the Bell" after 5 years on the air, and more than 100 episodes.
Of course, there was a fourth incarnation of Saved by the Bell: The New Class. But, this was more of a spin-off than a sequel of the original Saved By The Bell, (See SBTB: The New Class).