611 was pulled out of her storage spot and pushed slowly down and back a short piece of track for the ad. There was a lot of talk about it a few months ago. They electronically speeded up the motion and added other effects.
Would have been nice if she'd been restored for the commercial, but still the museum was paid somewhat well for the use.
I've never seen her under steam,but consider her and 4449 the two most beautiful Locos ever. (Yes there is beauty in a NG loco struggling upgrade, but that's a different kind of beauty.)
S'
David D.