Well, I did it this morning, and it took me 45 minutes to get through the intro/background stuff! LOL Half of it was me just pontificating longer on things than I should have. Then there was a bunch of extraneous stuff that I had included, and I was having some issues with some transitions.
I have edited it down a bit now, and the whole thing took me 47 minutes this time. Not bad. It'd be nice if it was a bit shorter, although I think that will happen as I practice it a couple of times and refine some transitions and explanations.
I got to admit, this part is kind of fun.