From the Store description:
The best way to manage your TV shows on phone or tablet - seasons, details, casts and much more!
- FAST access to your tv shows
- CLEAN and efficient design
- DISCOVER popular and trending shows
- STATS about your tv shows consumption
- CALENDAR with NOTIFICATIONS of incoming episodes
- KEEP TRACK of your progress
- OFFLINE ACCESS to your data
- IMPORT your TVShow backup
- LIVE tiles for the app and shows
- FREE access to all main features with no restriction on show number
- BACKUP your data to your trakt.tv account
- ANDROID and IPHONE versions of the app available
Details of thousands and thousands of tv shows are available through the app.
Here's TV Show Tracker UWP in action:
Good stuff and a great example of a UWP application for all Windows 10 devices, including phones. You can grab it in the Store here. It's free to use, though you can help development by paying to get rid of ads if you want to help out.