Watchlist: Divided Watchlists

I have on my IMDB watchlist both TV shows and movies, and among TV shows I have ones which are still running, and ones which are completed. I would like to be able to separate all those types to different lists, and for running TV shows I would like to sort by next episode release date.  I think this is a good idea to add to the Watchlist feature, as it allows people to follow currently watched TV shows, while keeping another list for "to see later" TV shows. In addition, I think it would be amazing if the watchlist could alert the user whenever a new episode of a TV show in his watchlist is released.