Plex sorts properly named media under show i do not have

Plex Media Server
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8

Noticed some of the Looney Tunes files are MP4 files.

Plex can read embedded metadata from MP4 files. If that metadata is bad, it will cause problems when Plex tries to match movies and shows.

Try configuring Plex not to look at embedded metadata:

  1. Edit the library → Advanced → uncheck Prefer Local Metadata.
  2. Save changes and refresh metadata.