This describes the source of the video. It means the content was recorded from a High-Definition Television broadcast rather than a Blu-ray rip (BDRip) or a digital streaming service (WEB-DL). Content Context

This indicates that the audio track is dubbed in French, or that the file includes hardcoded French subtitles (though usually, "FRENCH" implies a dubbed version for the Francophone market).

Applications like Plex or Kodi use these tags to automatically "scrape" the correct posters, descriptions, and cast lists from databases like IMDb or TheTVDB.