I'm posting this here, since the majority of O scale videos typically focus on 3 rail.
The future of model railroading is often discussed and with that in mind:
I mentioned this recently; it looks like there's an awful lot of newer YouTube channels popping up that are hosted by younger people. Dunno if it's partly because they are better at it than us older folks, (š) but whatever the reason I think it's a good sign for the overall health of the hobby.
Just thinking out loud while I recover...
Mark in Oregon