Two videocameras recorded the event. One captured a good video track, but with audio badly garbled by echo and noise from the audience. The other captured a clear (albeit low) audio track, but with video resolution insufficient to make out the slides. Though both cameras recorded at 30 frames per second, they disagree over the definitions of "thirty" and "second." Over the course of an hour recording, one camera drifted 14 seconds longer than the other. It took some effort to splice the two together.
Without further ado, here it is.