I haven't had a tv for a long long time now, but I do watch [and love!] many tv series. I like to watch them on my puter usually by myself. I find I get really drawn into a good show and find myself alternating between crying, sitting on the edge of my seat, jumping, shouting at the screen, gawping and grinning. I remember watching Lost with a housemate years ago and multiple times he felt the need to tell me
"it's not real!". I much prefer tv series to films.
My favourites are/were:
Battlestar Galactica (2003)
Cowboy Bebop
(probably my favourite show)
Dark Angel
(I've watched this through like 3 times. The post-apocalyptic setting really pulls me in. Also... NINJAAA!)
Dexter
(<3 Dexter... is that bad??)
Falling Skies
Farscape
(Rigel was a twat!)
Firefly
(Bastards cancelled it 
)
Fringe
Jericho
Jonathan Creek
Justified
(Raylan is hawt <3)
Long Way Round
(motorcycles!!)
Lost
(loved it all except for that last series... which was rubbish)
Samuri Champloo
Sons of Anarchy
(motorcycles!!)
Taken
(aliens!!)
The Killing (2011)
(best crime series i've seen)
The Walking Dead
(the first series was better, but I'm still enjoying the second)
The Wire
True Blood
(kinky, kinky werewolves and vampires)
I like sci-fi, some supernatural ones (especially with zombies!). I really love mystery (hence Lost and Jonathan Creek are in there). The characters are usually the most important thing for me. I especially love small groups of characters that spend a lot of time together and they all have strong personalities.