You can rent movies from iTunes and watch them with your Mac or Windows computer, iPhone, or a supported video-enabled iPod*, or on your TV using your Apple TV.
* Supported video-enabled iPod models are:
iPod touch, iPod touch (2nd generation), iPod nano (4th generation), iPod nano (3rd generation), and iPod classic. See this document if you’re unsure which iPod model you have.
Playing rented movies on Apple TV requires an update to Apple TV software. For latest information, please visit http://www.apple.com/appletv/