The way the characters (that were kept) trasformed from "Good Morning Miss Bliss" to the first season of "Saved by the Bell". And of course the last season when Kelly and Jessie disappers, this new girl appears, then she disappears, Kelly and Jessie return with no esplanations. Also on the last season it was inclinded that all of the characters were going to different colleges (none of which were Cal U) than they did the spin off.