The Best Buy expert stopped by to see if I wanted anymore help. He had a slot to fill and was nearby, so he came in and showed me the sound issue which had perplexed and vexed me. Various people encouraged me to solve the broadcasting issue, one with a very good idea about uploading to YouTube first and then linking that to the blog. That solves some issues.
So I tried YouTube and it began uploading the Lent III service: 80 minutes to upload!