This is going to be fun. Both TV programs where made between 2003 and 2006. You have have in mind that metallurgy greatly advanced in 15 century. The armor become much stronger. In ''stories for the bow'' they had experiments shoing that it is possible to penetrate large plates with longbows from a small distance(hardly, but possible ), but it is not possible to do it with the smaller armor shaped plates. Battlefield detectives used precised scientific tools to prove that. History is full with propaganda, so be more careful what do you accept for a fact. And after all even english used crossbows and plate armor all the way to the renaissance. The thing that replaced them wasn't longbows but gunpoweder. What is the point of heavy armor if it so easy to beat. I don't remember hordes of longbowmen conquering Europe- do you.