How can I get folder thumbnails for TV shows on PS4?

[MrH]

Basically I want to have folder thumbnails for my TV shows while using UMS on my PS4 via the built in Media Server (like Plex). I've tried putting in JPGs and PNGs with the same name in the folder, and in a dedicated art folder but nothing works. Any help would be really appreciated. I've got it working so I can change the thumbnail of each video file, but not the actual folder, is this even possible?

[MrH]

Also, is there a way to use one image for all episodes of a series? I tried naming a JPG the same as the series folder but that didn't work, none of the thumbnails changed.

EDIT: Naming the file "albumart.jpg" works, it shows that picture for all files in the folder, BUT, now I have a JPG file in my folder, is there anyway to hide it?

EDIT: Setting the file as hidden in Windows works!

I wish there was a way to do this automatically though, like a plugin that downloads the meta date/thumbnail from IMDB or something.