Mark, I taped that same show, and had the same feeling that you did. I assume that Don and Phil have some sort of archive, and that was where the stuff came from--I would love to hear and see more (as I would love to hear some of the old radio broadcasts) but I don't know of anything.

By the way, when you see watch those nashville pickers (as you described so well above) it is important to remember that they are playing fills, which means that they don't need to keep the beat. This gives them the freedom to play anything on any beat--This is a whole different style of playing than we are talking about here, and it is actually based much more in jazz guitar technique--