Jellystone as a series was always based in crossovers, specifically, the animated show brought together scores of Hanna Barbera characters including the likes of Yogi Bear, Huckleberry Hound, Top Cat, ...

Watch the Annecy trailer below, which has cameos by the Hamish Linklater-voiced Dark Knight as he appears in Batman: Caped Crusader, the Man of Steel from My Adventures with Superman, the Iron Giant, ...