I think this looks like Vinny has trained staff in the shop. To perform some calibration, rather than vinny doing it himself. And I'm not sure how good the quality will be. And also getting you tv calibrated in a shop, really needs calibrating at home.
ahh yes you are right, it does say done by ourselves and VT signs off on it. I will re-edit my post.
If something is not quite calibrated correctly I wonder how it is corrected then, does he ask for a recalibration I wonder.
It does say its done in a dark room but you can request different if you want.
It might still not be a bad option, I don't think we have any UK TV dealers offering calibration before sending it out to customer.