I have a large collection of movies & TV shows on a Mac mini which is my media server. All the TV shows are kept in folders holding all the episodes of the show. This has always worked brilliantly on my Apple TVs - go to TV shows, select a show, and then select an episode.
On the past and current (7.0.3582) releases for macOS, when I go to my TV shows, quite a few shows are presented in their folders (great), but the vast majority are broken out - that is to say, the folders are ignored and all the episodes for all the remaining TV shows are presented. This is a problem.