Not sure why this is, but when you add to iTunes the Album, Artist, Title,
Genre (and presumably others) all have a trailing garbage character.
Folder names in 'iTunes Music' are therefore created with "Tag Text_" and,
although the character is invisible in the iTunes UI, these tracks sort
separately (so you see two "TV Shows" genres, two "Blah Blah" artists, two
"Blah Blah, Season 1" albums, etc.
You can obviously fix certain tags with iTunes, but not the --TVxxx ones.