For me it would be

Charlie Brooker's Screenwipe/Newswipe
Being Human
Doctor Who
Dollhouse
Glee
Grey's Anatomy
Have I got news for you
Heroes
How I met your mother
Lost
Mock the Week
The IT Crowd
Time Team
QI

A couple of these (Basically all the US shows bar Lost) I only watch because they fill in the bus ride home. I also watch sports, but I didn't include them here