TV Show missed named.

First and foremost I am new to Plex so please be understanding if I am in the wrong place. Okay, with that out of the way, I have MASH on DVD and have ripped it to MKV and would like to have Plex take care of the rest, but I have a problem when PLex did a search for media it found some but not all of the seasons and mislabeled two of the Season. How do I fix this so that All of Mash is in one nice tidy place.

see https://forums.plex.tv/discussion/comment/1449555/#Comment_1449555

#do this first:
Go to Settings - Server - Agents - Shows - TheTVDB
In there, grab the line ‘Local Media Assets’ with your mouse and drag it downwards, so it ends up being at the bottom of the stack of active agents.
Repeat the same under
Settings - Server - Agents - Shows - TheMovieDatabase
+
Settings - Server - Agents - Movies - Plex Movie
+
Settings - Server - Agents - Movies - TheMovieDatabase

#Naming tv shows in Plex for fun & profit:

  1. Look up your show on TheTVDB
  2. Take the title as it is used on TheTVDB. If there is something in parentheses, take that too. If the title contains invalid characters (depends on your file system), like § : % *, simply leave them out.
  3. Check the naming and the folder structure of your show. Name the top folder of the show exactly after the title on TheTVDB. No abbreviations. No additional subfolders. No aliases.
  4. Name the episode files according to the above linked naming guide. Use the same title as for the top folder. Show's Title - s01e01 - additional info.ext (’- additional info’ can be left out)
  5. After you corrected the naming and folder structure, perform the Plex Dance with all files for this show.

Thank you for the fast response. I will get right on it.