List includes shows that have been cancelled as well:

Lost!!!!!!!

Dexter

Reaper

So Weird

Kingdom Hospital (mini)

Warehouse 13

V

Tin Man (mini)

The Lost Room (mini)

The 10th Kingdom (mini)

Hogfather (mini)

The Color of Magic (mini)

Alice (mini)

Skins (a british show)

Twin Peaks

The Legend of the Seeker

The Twilight Zone

Dead Like Me

John Adams (Mini)

Heroes

Ghost Hunters

Carnivale

So Weird

Ed

Fear Itself

Defying Gravity

Glee

I also enjoy watching random programs on PBS, Nat Geo, ID and all the Discovery Channels.