I would like to know if its possible to use local metadata for TV Titles and Summary. When I look at this article (https://support.plex.tv/articles/200220717-local-media-assets-tv-shows/) it explains posters, art, subtitles etc… but there is no mention of things like title, sort title, rating, summary etc…
You can set most of these things for episodes if you use embedded metadata in mp4/m4v files.
However, if you are after descriptions for the whole show, you can only put them in manually.
Or use Kodi-compatible .nfo files in conjunction with the .nfo importer agents (but they might cease working sometime in the future, as Plugins are phased out).