a show called "interviews"

[TheDreadPirate]

Ah.  Ok.  Because the shows and movies libraries are so dependent on metadata, you have to do one of the following.

1) Manually create NFOs with the metadata Jellyfin needs.  Some templates can be found here.  Your other option is to setup a test library with some of your other shows with a TMDB entry, enable NFO saver in the test library settings, and use the NFOs that Jellyfin generates as templates for your content.
2) Use the Music Videos library type.  The MV library, without additional plugins, does not retrieve online metadata and will just show the folder structure.