quick intro to boxee from boxee on Vimeo.

"boxee takes the great user interface of our social media center to control all of your downloaded media, and adds the great streaming content from CBS, Comedy Channel and Hulu! When your friends watch a TV show or movie that is on any one of these (and more) streaming sites, boxee will automatically connect you to the full movie or featured clips, so you can watch along with your friends, for free!."

They posted this video over at Grassroots Modern and as someone who only watches "TV" from online sources it looks pretty good to me.

Via: Grassroots Modern