I saw Vincent's demos on UTube, and found the one on getting the LG OLED 55E6V safely out of its packaging to be very helpful - much easier to follow than the somewhat cryptic pictograms on the outside of the box! I also watched Vincent's video on calibrating the TV to be very interesting. Although some of the content was above my head, Vincent's illustrated narrative was clear, logical and highly persuasive. For this reason, I contacted Vincent and booked a calibration session with him. As other reviewers have commented, Vincent's approach is to explain why he does what he does, to show you clearly what he is doing, and to demonstrate the effect of any changes he makes. Let me emphasize that Vincent's calibration of my LG OLED 55E6V has turned an excellent TV into the very best way possible for me to watch SD, HD, BluRay and 4K. Although at first glance, you may feel the charge for Vincent to bring his gear to your home is expensive, you should be reassured that the service Vincent provides is worth every penny - your TV will be transformed in terms of the clarity of the image, the balance of the colours, rendition of the skin tones, depth of focus, etc, etc!