There’s never been a show like “BoJack Horseman.” The Netflix series, which took its final bow on January 31, defied easy categorization from day one with its anthropomorphic reimagining of Hollywoo(d), sharp turns into existential melancholy, cutting jokes, and embrace of all things strange and poignant. It told the interweaving stories of five lost souls — BoJack (Will Arnett), Diane (Alison Brie), Princess Carolyn (Amy Sedaris), Mr.