When Is the Next Episode? (W.I.N.E.)

This application synchronizes a watchlist of user-specified TV shows into your Google Calendar.

WINE will create a specific calendar for the application so you can deactivate it and it won't overwrite any of your existing calendar.

Executable

You can download the first version of the executable here:
https://drive.google.com/open?id=0BzVda8iWVVbGSkZQNmhienRzWms

APIs

Google Calendar
https://developers.google.com/google-apps/calendar/

TVMaze
http://www.tvmaze.com/api