Where's the falling out? Where's the heartbreak? How could Screech ever trust Zack again? That was a large lesson I learned after separating myself from the obvious attempt in judgment from the writers: don't be a dick to your best friend, even if he's a little garbage kid name Screech.
Women are one-dimensional beings
Women really can't seem to catch a break in TV... or in real life, for that matter. If they weren't nagging their husbands or boyfriends about inconsequential topics, they were pursuing any number of valuable interests, including: fashion, coffee, or assisting an ornery man.
Seriously, it's really hard to put together a list of female characters in sitcoms that weren't waitresses, "working in fashion," or serving as glorified secretaries to any number of charismatic dudes. Roz was Frasier's producer, Elaine worked for J. Peterman in Seinfeld, and Rachel was a waitress and worked at Ralph Lauren in Friends.