General advice for sorting out my media library.

I am trying to sort out many years' worth of films and TV shows that I have amassed over the years.

However, given that they have been collected from a combination of ripping DVDs and recordings via various PVR backends, they are in a complete mess.

I have added the TV and Movie folders to Kodi and whilst it has done a pretty good of picking up a good majority of the files, there are some files that are being incorrectly scraped and some files are not being picked up at all.

Ideally, I would like to go through every folder, to check everything against the TVDB but that would take forever.

Are there any strategies/programs that you can suggest to help get everything in order?

My desktop runs both Linux and Window.

Thanks