I loved that episode!
Its a small popout, but it makes the interior so much bigger. I just finished, finally, fixing the water heater. I hadn’t drained it all the way last year, what I thought was the drain was the overpressure release. So I blew the tank over the winter, and I replaced the tank itself last month but either some of the piping also went or I broke it on installation. So yesterday was replacing a bunch of pex lines and fittings. And now I have the hot water again.
We already camped quite a bit and wanted to more often, so while you are correct, we were already infected before we bought it.
Yes, Richard Hammond used sheet metal so he could assemble an area that gave him several rooms. The problem was there wasn’t any internal bracing and it was very windy that night so the walls kept making noise all night long.