" 
 :I'll answer this as it bares partially on the content and not just some open-ended question regarding the show. Not officially no, Cartoon Network have never cancelled a show or at least called a show cancelled even if for all intents and purposes it is. Chowder is near cancelled or is as good as cancelled as far as it's creator is concerned and has one more season to run through should it get aired. The article still states it as running to the present because it is still running in the present and we have no idea when the final airdate will be. Until such time we know when the final episode will air, it'll be considered an on-going series.   "