Trakt.tv - Automatically track TV shows & movies you're watching.
My Episode Calendar - Don't miss any episode. You can track all tv shows. Make your own personal show calendar.
tvcmd - tvcmd is a command line interface (CLI) to keep track of tv shows and episodes. It has the functionality of myepisodes.com followmy.tv or mytvshows.org but for the command line, allowing greater flexibility like automatic torrent urls.
Showly - Showly is a free and open-source TV shows tracking application that is created with the help of TV show lovers.
TV Series Tracker - TV Series Tracker is the perfect app for anyone who loves keeping up with their favorite TV shows.
CnemaCentre - CnemaCentre is a free web and mobile application that allows you to explore new TV shows and keep track of the shows you are watching.