Plex Docs → Your Media → Naming & Organizing Your TV Show Files
Step One: Rename the episodes per Plex requirements, then re-scan the library.
EDIT: Use parenthesis, not square brackets, for show year. Plex ignores information in square brackets.
/Television K-Z <-- folder added to TV show library
../Lonesome Dove (1989) <-- show_name (year)
..../Season 01 <-- "Season" in English
....../Lonesome Dove s01e01.mp4 <-- sXXeYY important
....../Lonesome Dove s01e02.mp4
....../Lonesome Dove s01e03.mp4
....../Lonesome Dove s01e04.mp4
Step Two: Configure Plex to ignore embedded metadata
Incorrect embedded metadata may cause problems with movie/show recognition.
- Edit the library → Advanced → deselect
Prefer local metadata
- Refresh Metadata if Plex does not do so automatically
Step Three: Plex Dance the TV show.