Hi,
I have observed this before too, but the naming of movies by channels DVR doesn't work well because of the recording date in the end of the filename. Looking at the previous threads it looks like it's expected to work but it doesn't work in multiple movies for me. E.g. The filename Boy Meets Girl (1938) 2022-10-04-1400.mpg, gets assigned Girl Meets Boy, some 2020 film by Plex.
Previously, I've been moving all the files to a different folder and renaming to remove the timestamp in front so the just Title (Year), but I wanted to ask here if perhaps I'm missing something. That seems to be official compatibility in plex naming Naming and organizing your Movie files | Plex Support
Thanks,
Arka