TorrenTV offers the ability to stream any Torrent to your AppleTV via AirPlay. The software allows you to download the movie through torrent and then in a few minutes watch it on your AppleTV.
The service offers drag and drop magnet links or Torrent URL links into your box. If you already have files on your hard drive you can drop it in the box and it will be sent to the AppleTV via AirPlay. TorrenTV is available for Windows, Mac, and Linux 32bits/64bits. Check out the TorrenTV HERE