I'm a bit hit and miss on TV it seems, as I get caught up in online stuff. But here goes:

Babylon 5 (Just started)
Doctor Who (2005) (not fully caught up)
Doctor Who (1963) (Still on the first Doctor, BTW I really quite like him, after a few serials at least)
Dragons Den (not seen latest series but still catch it sometimes)
My Little P0ny: Friendship is M4gic (sorry but the wordfilter actually broke the post)
Naruto (less frequently now I read the manga)
Red Dwarf (aka the Dave channel)
Star Trek (all of them) (just finished, will probably go back and re-watch a lot though)
The Apprentice (not seen latest series but still catch it sometimes)
Top Gear (not a devout follower, but often enough)


Things I've watched and finished, but enjoyed enough that I will probably re-watch them one day:
Blake's 7
Full Metal Alchemist (Brotherhood)
Full Metal Alchemist (Original)
Neon Genesis Evangelion
Sapphire & Steel
The Finder (Old Aussie kids TV series that I watched when I was young and was amazed to see on Youtube recently)
The Prisoner (1967)
The Prisoner (2009)