A lot of your favorite shows and movies are already available on the Internet. Boxee is a device that finds them and puts them on your TV. Just plug this little guy into your TV with the included HDMI cord, connect to the Internet via wireless or ethernet and you're set to watch your favorite shows and movies from the Internet on your TV.
The Boxee Box is available here, and includes social features, apps, tv shows, "watch later", and frequent updates.
Within Boxee, just select "Apps" and then find the Revision3 App. Install the Revision3 app, mark it as one of your favorites and then you're good to go!