As far as I know Nvidia cannot become BIOS modded as it is designed this way from the ground up and only Nvidia itself can change settings on it. I don't know any program similar to ATIflasher for Nvidia. This only should make people go away from such things.
It is true that somebody fell for it and bought the driver for real only to find out that is was the normal driver from Nvidia.
Another thing to check is Ebay where BIOS mods for ATI cards are being sold in mass but couldn't find the same thing for Nvidia. This adds another reason why the video is a scam or a bad joke to say the least.
You have done well to ask here and that is the approach anyone should have regarding these kind of things. Here help will be very fast in most of the cases.