In anticipation of the exciting Season Finale of ABC’s ‘Once Upon a Time’ and the series premiere of Disney XD’s upcoming animated series, ‘TRON: Uprising,’ master storytellers Edward Kitsis and Adam Horowitz, the series creators/executive producers of ‘Once Upon a Time’ and the consulting producers of ‘TRON: Uprising,’ will answer fan questions about the shows, LIVE and on-camera on Facebook, Wednesday, May 9 from 3:00-4:00 p.m., ET/12 noon-1:00 p.m., PT. A pre-show featuring behind-the-scenes video from ‘Once Upon a Time’ will begin 30 minutes earlier, at 2:30 p.m., ET/11:30 a.m., PT.