Where to start :/
Dr. Who
Top Gear
Burn Notice
Psych (New Season starts August on USA Network)
How I met Your Mother
Chuck
Robin Hood (sadly ended last week (I think))
Mythbusters
Dirty Jobs
Hotel Babylon
Bullshit
Anything related to Football
The Daily Show
The Colbert Report
Torchwood
Firefly (although that ended ages ago)
Dollhouse
House MD
and more.. but I don't remember their names
And that's only what I've been watching recently