The audio and video do not match at all. I suspect he did a few solves and they combined that audio. Until the last shot, he appeared to be doing random turns/algs. If you notice, the sounds of the "writing utensil" are obviously that of a pencil, but you can see that he is using a pen. This is pretty much standard practice for a commercial. I would like to have seen a "real" solve instead of the random turns. But seriously... I imagine it would be crazy hard to fill out a form while solving.