I flew an international config 767 from DEN to ORD a couple of weeks ago in seat 20J (wish I could have been up in the new C seats, but this was a saver award ticket). My airshow map did not work (Channel unavailable) but while walking around I saw that other Y seats did have it working. Other video channels in my seat did work. It was odd, but for a short domestic flight not a big issue. I would be more upset if I were going on the continuation of the flight to Europe.