I don’t think the stock scanners for movies or tvshows are really cutting it when it comes to .ts files. For one, the recordings usually contain timestamps, station names and whatnot, all of which make their way into the media library after Plex went over the files without understanding the associated .meta and .eit files, resulting in poor matching of the tvdb descriptions and an overall mess instead of a neatly organized media library.
A custom scanner script (see examples here: Scanner for enigma2 .ts files) helps greatly with this, allowing Plex to understand all details of the recording and allowing it to properly organize the media library. Details include whether a recording is one of many series episodes or just a single movie, from which year the movie is and whatnot.
I’m sure one can do without a custom scanner if there only are a few recordings. In my case, I’m looking at over a decade of dreambox recordings, which are literally impossible to use in Plex without the help of a competent scanner script that helps retrieve as much information as possible from the existing recordings.
