Showly - Showly is a free and open-source TV shows tracking application that is created with the help of TV show lovers.

Filmsomniac - Filmsomniac.com | TV Tracker | Movie Tracker

DroidShows - TV series browser and tracker

Simkl - Simkl is a TV, anime, and movie tracker that keeps a history of all the shows and movies you watch in one, central location. It’s a mobile app, a website, Google Chrome extension to keep track of everything you watch and integrates with many TV apps

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.

Trakt.tv - Automatically track TV shows & movies you're watching.