O.K., I'm up for a little after hours detective work. I found a Quicktime version of the commercial here.
The camera appears to be an 8x10, and has curved rear standard braces. I know of two offhand, the Wista and the Ebony SV810. It appears to be the Wista because the Ebony's rails aren't as long and symmetric. Also, the Ebony's bellows appear more tapered than the mystery camera, although it's hard to tell in the Quicktime version. Anybody know of others?
I'm also guessing that the camera is not old, because they probably rented it, unless they came up with a gen-u-wine LF photographer who loaned it to them.