I'm not sure how I missed this thread.
AD currently stands as my favorite show (I have yet to watch The Wire, though and everyone tells me how amazing it was). My favorite part about the show is, regardless of how many times I've seen any given episode, I will--without fail-- find something new that cracks me up.
Fox really screwed the pooch in regards to that show. Constantly changing time slots made it nearly impossible to watch. I also firmly believe that is a tough show to start watching in the middle of a season. It makes so many references to past stories/episodes that a viewer starting to watch at say, Episode 11 of Season 1, many jokes would be lost on them. I know this from experience, as I remember catching random episodes when it was on the air, but I didn't fully appreciate the show until I got all of the seasons on DVD.