Ok : here's how it will works. NEWS item (such as a new episode title, new pokemon) belong in the News forum and NOT in Anime. Discussion about the episode (preview/review threads, SYNOPSIS) belong in the anime forum.
We could just make extra thread redirects. (Start a thread in a forum that it won't be associated primarily with. Then move it through all the other forums you want to create redirects in (making sure you leave the create redirect option on!) and voilà, you have a thread that exists in multiple forums.