The Office (Season 5)

Also Double Wammy of goodness, also free at NBC.

My Name is Earl (Season 4)

Great 2 Episode Season Premier, Free online at NBC.

It's Always Sunny in Philadelphia (Season 4)

This great show came back last week with two episodes, I specially enjoyed the one called: "Dee and Charlie enjoy some of Frank's succulent meat.". You can watch new episodes online at Hulu.com 8 days after their network premier.