I agree about the product endorsements, but I think the show is engaging and can be eye-opening for someone who is about to have a house built and doesn't realize how much scope there is for mistakes, for people to cut corners or accidentally get little details wrong. Something like installing a waterproofing system is complicated enough that it's very easy for subs to make mistakes, and you need the contractor to understand the system, monitor the work, and call out mistakes and get them corrected. I know the reason he's showing people this is because he wants them to see value in paying him a big premium over the lowest bidder, but it's true and useful information.

Also, on a personal level, I find his enthusiasm for quality to be infectious, and it puts me in a mood to write good software.