Deadwood was excellent but sadly HBO cancelled it before they made the last series so you can enjoy 3 series but you'll never find out what happens. (HBO are apparently quite bad at doing this, or so I've read on various TV/Movie discussion sites).
I love
Battlestar Galactica and the
X files (they've got a box set of best rated episodes out now too so you can watch all the good ones with the freaks and monsters and forget about the alien conspiracy ones).
A Touch of Frost is a good one if you like UK police dramas
Peep Show is good if you like risqué comedy
Gavin and Stacey is comedy I love
Boston Legal is great
I used to love
Northern Exposure but it's probably a bit dated now
I also like
Midsomer MurdersDid you like what I did with the green there - my TV is broken and I'm a bit bored
