Kaveh Bazargan has patiently recorded the sound and the screen of every interventions at LGM. Here is ours: http://media.river-valley.tv/conferences/lgm2008/quicktime/0103-Harrisson.html. (At the end of the conference, we discovered that Kaveh is a TeX guy for 20 years, so we've asked him a few questions. Transcript will come.)