This request seems a little different from the matching topics. It's mentioned as in the plans in this thread. I'm finding more and more things that don't match Gracenote (or that Gracenote doesn't even have, mostly kid shows, and mostly with seasons/episode order if they do) but match wikipedia/thetvdb/etc. I don't mind doing all the metadata work myself, but right now it's just a garbled file name in the app.
(One Example - Gracenote says Craig of the Creek's new episode is Season 3, episode 37. But all other sources including Cartoon Network who makes the show says it's Season 4, episode 1).