Sick Beard is a PVR for newsgroup users (with limited torrent support). It watches for new episodes of your favorite shows and when they are posted it downloads them, sorts and renames them, and optionally generates metadata for them. It currently supports NZBs.org, NZBMatrix, NZBs'R'Us, Bin-Req.com, Womble's Index, any newznab provider, and EZTV.it and retrieves show information from theTVDB.com and TVRage.com.
automatically retrieves new episode torrent or nzb files
can scan your existing library and then download any old seasons or episodes you're missing
can watch for better versions and upgrade your existing episodes (to from TV DVD/BluRay for example)
XBMC library updates, poster/fanart downloads, and NFO/TBN generation
configurable episode renaming
sends NZBs directly to SABnzbd, prioritizes and categorizes them properly
available for any platform, uses simple HTTP interface
can notify XBMC, Growl, or Twitter when new episodes are downloaded
specials and double episode support
The program is currently in alpha - any new update might break existing functionality. Use at your own risk!