Actually, I can help by aiming you here:
https://support.plex.tv/articles/naming-and-organizing-your-tv-show-files/
You can work on that while we wait for Specials to be attended to…
You can work on this too - denying Plex’s ability to peer inside those MP4 files for embedded metadata:
Old Agents:
New Agent:
Edit the library/advanced: Disable ‘Prefer Local Metadata’