I can answer anything you need when it comes to the original Saved by the Bell and The College Years. I also have knowledge of Good Morning, Miss Bliss (aka The Junior High Years). I don`t have much knowlege of The New Class, but I am familiar with some of the show. If I don`t know the answer, I will do my best to find the answer.
I run and maintain a Saved by the Bell website, SBTB Corner. I am also a moderator at the Saved by the Bell: NOW! forum. I've also met Dennis Haskins (Mr. Belding) in person at his "Mr. Belding on Campus" tour in 2004. That right there gave me a lot of knowledge of the show, especially some unique information that isn't really known.