I've also started back on Saved By the Bell although I'm doing it kind of backwards as I started with the College Years. I am enjoying it due to nostalgia factor, but that show does not hold up very well. As I'm now more mature I find myself realizing even more how crappy a person Zack is.
I can still enjoy Saved By the Bell. It was always ridiculous but it kind of knew it too.
Agreed on Zach. The 'Zach Morris is Trash' stuff on YT definitely highlighted this.