Batman Beyond is undeniably a classic entry into Batman lore. It's unique vision of a futuristic Gotham and the young Terry McGinnis taking on the mantle of the Dark Knight from an aging Bruce Wayne forges an incredible new path for the Caped Crusader, but the thing is... nobody thought it was a good idea. So how did an idea nobody wanted turn into a fan favorite that's just as iconic 20 years later? This is the Inside Story of the unlikely and unwanted origins of the Batman of the Future! (thetvdb.com)