Trakt.tv - Automatically track TV shows & movies you're watching.
Reelgood - Every streaming service in one place, from over 300 free and paid streaming services. Browse, track and watch all your TV shows and movies from one place.
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
Must App - Your personal movie assistant
Showly OSS - Showly is modern, slick, open source Android TV Shows Tracker. This fork gets rid of all proprietary tracking libraries.
Ketchup – TV Show Schedule - Ketchup – TV Show Schedule app helps you in adding TV shows and movies to the following list to receive updates and reminders about the airing time of each show so you can manage your schedule.