You can download movies now onto your PC, and you can watch them on that monster while sitting at your desk, but who want to do that? How do you get the movies you download onto your desktop to play on your Home Theater system? One of the easiest (but often least practical ways) is to simply plug your computer directly into your TV via S-Video, DVI (digital video interface) or even HDMI (high-definition multimedia interface). If you can’t get your computer that close or can’t seem to plug the right cable into the right hole, you can simply burn a DVD on and watch it the same way you would any other.
You can also set up a home network and stream the movies to your TV without violating the licenses by using file-sharing software. Last but not least, if you are fortunate enough to own an Apple computer, after March of 2009 you can purchase an Apple TV device which works with all iTunes movies and will save you the headache of having to figure this stuff out in Windows.