Plex Docs → Using Subtitles → Subtitle Offsets
Supported for external SRT subtitles. Available during playback in Playback Settings.
Is the option available when playing the movie via Plex Web or other supported clients?
Screenshot below from hosted Plex Web, https://app.plex.tv/desktop. Also appeared on my Android TV clients. I do not have a Samsung TV with which to test.
Edit: Also works in Plex LG webOS app, v5.37.1. During playback pull up playback settings (three vertical dots on right side of screen). You’ll see the option for subtitle selection and offset. Choose offset and screen will change to movie/show with ability to change offset +/- 100ms appearing at the bottom of the screen.
