I'd say right now, one of my favorite shows that seems to be pretty underrated is My Boys. I think all of the characters are great and they're quirky without being annoying. I love how even though PJ is going out with Bobby, she's still really close with Brendan and the show hasn't tried to shoehorn a PJ-Bobby-Brendo triangle. I think My Boys is like, a hundred times wittier than Friends was on its best day.
My other is Castle. I don't know if it's like, super under-rated, but I definitely don't think it's getting the kind of ratings it should be. Every week there's something that makes me laugh out loud, something that makes me want to root for every one of the characters, and something that defies TV cliche. It's not always the most famous guest star who did it, it's not always who you thought it was, and the relationships actually seem real. It started out as a guilty pleasure and now it's easily one of my favorite shows.
ETA: Best is different from worst!
Edited by BabyVegas, Nov 4, 2009 @ 3:06 PM.