Option to hide thumbnails for unwatched episodes

[podonnell 52]

Hi,

Trying to find where this setting was, I remember seeing it a few months back. I checked in the Library settings but do not see it.

My main question - is this option server-wide, or can you specify by library? For example I have a library where there is content that has to be listed as 'tv' content, but I want to see all individual thumbnails within that library.

[Lessaj 580]

It's a per user setting that works globally - it's under Display.