When it first opened, we arrived at DCA about a half an hour before opening, and they were already forming a queue for TSM. The castmember said the wait was approximately 90 minutes, and the park hadn't even opened. We came back later that morning and the wait was still 90 minutes. But then we tried immediately after the Pixar Play Parade ended, before the crowds could make their way over there, and the wait was temporarily down to 30 minutes. But in general, DCA crowds tend to thin out a bit in the evening anyway.