You can easily and instantly purchase and watch any video, directly on your iPhone and iPad. It works no matter where you are, all you need is...the internet connection.
Though, if you'd like to stream a video to your AppleTV to watch it on the big screen, you can use AirPlay directly from your iOS devices.
What you need:
• iPhone, iPad, iPad mini, or iPod touch
• Apple TV
Note: Your iOS device and Apple TV need to be connected to the same Wi-Fi network.