What it does
The TVmaze API gives information about TV shows: search shows and people, get episode lists, cast, crew, the daily TV schedule per country and show images. Shows can also be looked up by their IMDb or TheTVDB id. Responses are JSON. Free, no key needed, with a rate limit of a few dozen calls per 10 seconds; the data is licensed under Creative Commons BY-SA.
More information: https://www.tvmaze.com/api