Actually, if meeting Woody and Buzz is extra special to you or your child, I'd blasphemously suggest forgoing the standby TSM line and instead getting in Woody and Buzz's line at rope drop. Try to be the first one there if you can.
I'll describe Woody and Buzz's greeting spot for those not familiar with it: right across from TSM there's another door. It leads to a winding indoor queue full of props that make great photo ops: huge cutouts of Buzz's ship, Stinky Pete's box, the toolbox, Zurg, a battery...things like that. You then reach Woody and Buzz's greeting spot, which is visible to the outside through a big glass window.
If you reach Woody and Buzz's queue before they arrive, the line starts right in front of the window looking in on their spot. I was there because I'd randomly decided to meet them first instead of taking a standby ride on TSM---and I was the only one, because the rest of the rope-droppers understand the wisdom of ride maximizing touring plans.
A few of the first TSM riders finally joined me right at 9, when Woody and Buzz approached the window from their side. Woody waved, and Buzz poked and prodded at the glass like he was Darla looking for a fishy in the tank. Their attendant also arrived at this point to unlock the door. I thought we were headed in in to meet Woody and Buzz at their spot, so I was rather surprised when Woody and Buzz instead walked away from the window toward their queue. They arrived at their door a minute later, where I was waved through.
To my amazement, I was treated to some one on one playtime with Woody and Buzz. Remember those props I mentioned? They posed at all of them. Buzz somehow managed to silently slip behind a few of the props and jump out at me. Woody would scold him with a finger-wag, and we'd carry on. Woody mimed Stinky Pete, Buzz jumped in front of us with his laser aimed at Zurg...and all the while they'd gesture excitedly at me, and I completely understood what they were saying each time. We had a full discussion of their story. I was seriously impressed.
Unfortunately I'm a total dummy and completely forgot about my camera until we actually reached the photo spot, so I don't have those amazing rare shots of Woody and Buzz with the queue props. But I can tell you that it's the clearest and fondest memory of my trip. I've never been so happy I missed a TSM ride.