I think there is something like that at universal. I believe it is after 4pm, but I am not sure. There will be plenty of people who can answer that for you on these boards. I'm sure some of the DIS veterans will chime in before long with specifics.
I figured that it was a long shot! We are focusing on Disney this year, but thought that it might be fun to hit IOA for a couple of hours. Thank you for the responses!!!