torrentRss is a program that can be used to download TV shows and keep up to date with released torrents on thepiratebay.org. By using the RSS feed that tpb generates, you can run this program and have it update all episodes. A text file is used for the database, which is very primitive as of right now.
autodl-irssi is an advanced and easy to use torrent file downloader plugin for Irssi. The optional ruTorrent plugin (GUI) makes it even easier to use. The installer will set everything up. It works by connecting to your torrent tracker's IRC announce channel. You tell it exactly which IRC servers and channels to connect to and it does the rest. When a new torrent is announced, and matches one of the user filters, it's immediately downloaded. There's no delay like RSS, which polls once every 5-15 minutes. Once downloaded, the torrent file can be saved to a torrent client watch directory, sent to rtorrent, or uploaded to an FTP server. It supports more than 70 private trackers, and it's very easy to add your own if you know some basic XML and regular expressions. The filters are easy to set up, but also advanced. Some of the filters are release name, TV show name, torrent size, resolution, encoder, source, year, format, bitrate, medium, category, and many more. To prevent you from accidentally downloading too many files at once, you can also tell it to only allow X number of downloads per day, week, or month.
myTV (formally tvtrss) is a script that will scrape your favorites RSS feed from tvtorrents.com or showRSS and submit new links to transmission-daemon. It includes regex filters, auto-expiration of torrents based on seed ratio, destination directories for completed torrents, Twitter notification of completed torrents, and RSS history.