Once and Again and Sisters! WOW! I loved those shows. Also a fan of Murder She Wrote and Golden Girls along with the staples of Family Ties, Facts of Life, Diff'rent Strokes...
But as far as new ones -- I love Law & Order, but only the original and SVU. I also like the reality shows on MTV when I have nothing doing on a lazy Saturday -- the Guantlet should be interesting this season!