How should I set up my P90x and T25/Insanity videos so that they scrape correctly? Do I use the TV scraper or the Movie? And what naming convention should I use for each video?
We believe this is a Kodi issue or a specific Kodi function and as such you should look at addressing the issue there. If you do believe that this is an OSMC specific issue, please let us know.
Your best bet would probably be to use .nfo files. The kodi.wiki covers this in some detail.