FlexGet!

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. It can also be configured to automatically upgrade the quality of files already downloaded when a better quality format becomes available.

CouchPotato is an automatic NZB and torrent downloader. You can keep a "movies I want"-list and it will search for NZBs/torrents of these movies every X hours. Once a movie is found, it will send it to SABnzbd or download the .nzb or .torrent to a specified directory.

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, Newzbin, Womble's Index, NZB.su, TVTorrents and EZRSS and retrieves show information from theTVDB.com and TVRage.com.

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.)

Folx is a free application that combines two functionalities - of download manager and torrent client for Mac. Folx makes downloading extremely easy: just open the page with the file to be downloaded, click the link in your browser and Folx will start the download for you. Its auto resume option comes handy when the downloading gets interrupted. You can also assign a tag or a few to the downloaded content for accurate and easy search through the downloaded files.

RSSPig - RSS Feed torrent scraper with user friendly web interface. Uses Sinatra, Resque, Redis, tvdb_party (+ many other awesome gems)

MyTvShowsOrganizer is an open source app that downloads torrents of TV episodes.It has all the tools to organize, download and get info about TV shows.

Why waste time downloading TV NZB files when it can be done for you?

Otomatic is the successor of Automatic , and encompasses the long experience of Automatic into a totally new, redesigned package. From the icon to the UI and even the abandonment of System Preferences, everything in Otomatic is new. Among the highlights of Otomatic are a richer experience with TV shows, active searching amongst multiple sources in addition to RSS, and greater flexibility.