I do not encourage downloading and sharing copyright media, but this tool can be sued for legitimate stuff as well.

I like the combination of RSS feeds and Torrent, which gains popularity on the web, for sharing legitimate content, and there is such concept of share and legitimate.

You can tune the tool to video podcast which support torrent, and you will get the episodes to your computer when it is published.

If then you tune Orb (me previous posting) to the download folder of Ted, you can watch later your downloaded episodes from every machine on the Web.