http://www.savedbythebellreviewed.com/2015/03/11/saved-by-the-bell-season-3-recap/

If Saved by the Bell matured during season two, then season three was its coming of age. It was during this season that many of the most recognizable episodes of the series aired. Even the theme song and opening are now the more recognized versions, being familiar to many viewers from syndicated episodes. Unfortunately, for this franchise, that doesn’t mean it was all unicorns and gumdrops and Emmys. No, there are plenty of bad episodes this season, so many it’s going to be hard to narrow them down to just three, but they’re still widely remembered.

It's been a decade or more since I have seen most SBTB episodes, but I agree that Season 3 was pretty good (Season 1 is my favorite, followed by 3 and 2 in that order, and 4 is my least favorite by a mile). I am sure I'm not alone in that I despised the Kelly character early in the third season for what she did to Zack, and loved when she got her payback.
Rockumentary and No Hope With Dope sucked. I disliked them when they first aired.