The Plex TV Series agent defaults to TMDB ordering, but it also supports all available TVDB orderings. You can change the library default to TVDB (aired) ordering via Manage Library > Edit > Advanced > Episode ordering, or change it on a per-series basis via the similar Edit show > Advanced > Episode ordering. It looks like TVDB’s Aired and DVD orders both have 5 seasons for Naruto. The metadata will still be a combination of different sources, but the core episode will be matched based on the episode ordering you choose.
it shames your for using anything else.
Because Plex is planning on completely removing the infrastructure that supports legacy agents ~soon, and it has already been removed from Shield servers (including third-party agents like the Anime-focused HAMA). There is a plan to overhaul the API that should usher in a “new era” of third-party metadata agents, but since the current system will go away eventually, you get a warning when you try to use a legacy agent.
