Description of your request or bug report:
I recently added a TV series which turned out not to have any seasons or episodes on TMDB, which resulted in an empty Natively series page.
Previously, I came across problems which stemmed from missing episode information on TMDB.
It would be helpful to have a warning to users trying to add resources that are missing important information that could potentially cause problems with tracking, and/or a 
on items already in the database.
Trello link:
