I absolutely love the live shows. And by the time the episodes are released, I've usually forgotten most of the content anyway, so the episode still feels fresh. Also, hearing the odd mention of my username is a lot of fun. The interaction brings a whole new level of interest to DiF. I can be, in some small way, one of those head-friends.
Plus, why would I watch those back-log episodes on Justin.tv, which I can't do away from my computer, when I can wait a little and hear the polished, final product, with much better sound quality, and show notes, and I can take it with me anywhere?
"The Doctor is Submarining through our brains." --Teague