It was definitely fascinating to watch for a while. I would actually love to watch live coding with commentary of some good programmers, I imagine you could learn a lot from it.
The others can be found here: http://peepcode.com/screencasts
Furthermore, there's http://www.cleancoders.com/ by Bob Martin. For several of the available episodes there are screencasts available in which he TDDs on some task, e.g. here: http://www.cleancoders.com/codecast/clean-code-episode-3/sho... Those screencasts are bonus material, so to speak, the actual episodes are well worth the watch, too.
All those screencasts cost money - but imho they're very well worth it!
It seems like a rather niche area which could easily be exploited, to complement a live stream, It would be nice to have a live code display as well.
Something like a tail -f for the web.