Sonarr

Sonarr (formerly NzbDrone) is a PVR for Usenet and BitTorrent users. It can monitor multiple RSS feeds for new episodes of your favorite shows and will grab, sorts and renames them.

Free Open Source Mac OS X Windows Linux BSD Mono

Butter Project

Butter allows any user to easily watch movies through torrent streaming, without any prerequisites. Skip the downloads with Butter! The perfect container to plug in any video content. Available for Windows, Mac, Linux and Android.

Free Open Source Windows Linux Android Mac

Sick Beard

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.

Free Open Source Windows Linux

Folx

Folx is a free application that combines two functionalities - of download manager and torrent client for Mac.

Freemium Mac OS X

Novaroma

Novaroma is free open source software. You can search and download tv shows, movies and subtitles automatically. Also you can use Novaroma with dlna media servers (XMBC, Plex, Servio, PS3 etc.

Free Open Source Windows

Watcher

Watcher is an automated movie NZB & Torrent searcher and snatcher. You can add a list of wanted movies and Watcher will automatically send the NZB or Torrent to your download client.

Free Open Source Mac OS X Windows Linux BSD Self-Hosted

SickGear

SickGear has proved to be the most reliable and stable TV fork of the great Sick-Beard to fully automate TV enjoyment with innovation.

Free Open Source Windows Linux Mac Self-Hosted