My poster collection includes titles on the posters and therefore I prefer to disable “Show Poster Titles” below the poster for a cleaner looking UI.
However, this also seems to affect the “Watching” section at the top of the screen, removing the name of the Show/Movie, as well as current season/episode. I don’t consider the image displayed in the “Watching” section to be a poster. I believe it uses the “background” image.
There really should be two separate settings for this. One for “posters”, and another for “watching”, as I prefer to have information displayed for “watching” but hidden for “posters”.