I was without television for nearly decades. When I did have it, I didn't have access to channels of the fun stuff, such as the show you described. Even then, most of us "knew" there were more important things than routers, like table saws, band saws and so forth.
Of course, now I have about nine routers, and over-arm pin router, a Craftsman Router Crafter, a decent router table and drawers full of bits.
In honesty, and simple things aside, I never gave serious attention to jigs until the last few years. The first I tackled was a circle cutter for the band saw. After it, I was hooked because of how easy it made making dead-on circles.
I used to work for the feds, where my "career" of creating procedures and providing solutions to problems got its foot hold. The government bought many of my inventions and procedures, since they were above my pay grade. I'd been doing such for years, but took it for granted, until someone on the job pointed out they'd buy things like that.
Anyway, the point of it is, I have, literally, drawers full of designs and ideas ranging from the jig I posted to electronics devices.
With the internet, I'm slowly catching up. Meanwhile, I suspect I've reinvented the wheel more than once, since (I was drawing flat nosed vans around 59). Like Rosendahl, I had to come up with solutions and it's interesting to see how much people think alike, and differently, at the same time.
The reason I have what you want is, I never lent it out before.
Scraps are a myth.