We actually find out when they are running the parad and we schedule Tony's Town Square right around that time. If you get there early to check in for your ADR (of which we always do), you can ask for a seat outside on the patio and I feel it is a magical experience to eat dinner right in the middle of the MK and watch Spectro Magic above the crowd.
The first time we did this was the most magical time we had on that trip. We still talk about how great it was.