Actually, I've seen his show a couple of times. I don't watch those shows that much. It would be like you watching a meat cutting show.

He does a good job and his sidekick is really the knowledge/skill guy, like Norm was to that jerk Bob Vila.
Mac explains things well and provides a lot of shortcuts and tips.
The house next to mine was built on "This Old House" back in 1984. I believe it was the first new construction on the show.
The owner, whose name was Bob also, told me Vila was a major jerk.
He would show up for taping, pick up a hammer, do a couple "Takes", then tell Bob what had to be done for the next time, not offering any other help, and leave.
I watched the complete season and you can see the chill in the air between them in the last episodes.
Norm on the other hand was great, according to the owner Bob. Very knowledgeable, understanding and helpful, doing a lot of the work.
The house had a lot of issues, it's a "stressed skin panel" design and back then we didn't understand the importance of moisture venting.
I've replaced the siding, roof shingles, 4 Pella french doors and replaced the deck over the years. The present owner is a great neighbor, the kind everyone wants, and has done a ton of upgrades.
The house is a great home now.