Batman Beyond is one of the most beloved animated superhero shows of all time. The series' straight-to-video companion movie Batman Beyond: Return of the Joker sent shockwaves through the fans of the show and of its preceding Batman the Animated series. DC Entertainment and Warner Bros. release three straight-to-video, super hero features each year, and even after all this time Return of the Joker still remains at the very top of many fans list of favorites.  To celebrate its 20th anniversary, the panel looks back at Batman Beyond: Return of the Joker.