I have two favorite original TZ episodes. The first is the woman undergoing surgery to correct her "ugliness", and in the end we find out why (don't want to give that twist away!).

The other has a bespectacled Burgess Meredith who just wants to spend all his time reading. He gets his wish at the end, but he can't quite make it come true.

Also, has anyone seen the one with Robert Duvall? I never saw the whole episode, only bits and pieces. Something to do with a dollhouse, if I'm not mistaken.