I've seen these on my YouTube feed but ~1 hour videos is more time than I'm generally willing to invest. I have liked their shorter form videos though.
Never fired a real relic to be honest, but a friend had a replica Colt 1861 Navy in .38 Special I think. That was fun to shoot. I'd love to fire an old Maxim gun or vintage <=M16A1 AR-15. A legit vintage lever gun would be really cool to shoot too. And a C96... and a 100 year old Luger with modern ammo...
Sometimes all you want is Ian's Forgotten Weapons episodes or a flashy Brandon Herrera video shooting White Claws with an AK, sometimes you want to dig deeper.