Though the Magic of Google, I have discovered Things. The people who did the titles for "Tonight's the Night" and several other television shows like "Strictly Come Dancing" were behind this bit of technological lulz. On their showreel they have some clips of John standing in front of a green screen, and him dancing and goofing off.
So, I'm guessing that Creative Nuts can do pretty much whatever they wanted with the footage. But if not, I've got them downloaded to my harddrive. = )