I prefer the way Roku handles Captions., where I can have PLEX have a caption selected, and the Roku App can override and have it set to Off (or caption on replay)
I also use a TV with Google TV, but cannot find a way to have Google TV override the PLEX caption settings.
It there a way in the PLEX App for Google TV to globally override the caption settings (when a caption is set for every video already)