Local covers

I dont get it. For movies my local covers etc. work perfect. But for tvshows i can’t get it to work. When i change to local, then it shows my local images. But then the complete tvshow doesnt show up in my library view. And when i switch back to online, then it doesnt show my local images, but the tvshow shows up again in my library. I have done everything, I created poster.jpg, folder,jpg, tvshowname.jpg…etc. What else can i do.

What is going on, and what am i doing wrong ?? I am talking about the mac app.

Leave it set to online but go to Settings > Metadata & Artwork > Prefer Local Artwork - set this to on. That way it will fetch everything except for when you have local artwork.