TED is an RSS aggregator, but with the functionality of any computer BitTorrent software (you can use ted with Azureus, uTorrent, Tomato Torrent, Transmission or any other torrent client): we subscribe to the TV series which want to download and the program checks the website and any podcast or feed and if updates are found, it downloads them.
Because TED is written in java, it means it's multi-platform so it works on Windows, Linux and Mac.
We can filter the results by file size, keywords, and minimum number of seeds that must have a torrent to download.

And of course, you can add your own RSS feed.
Download TED.
[via Tuxi]