It’s a four part-er so I’ve included the links for your benefit rather than a mass embedding of the videos:
Presenation slides (Warning: ZIP link)
Side note: I don’t like Yahoo! Video nearly as much as its competitors. The base player stalled out on me and wouldn’t let me advance to my previous place in the video when I restarted. I suspect it’s linearly buffering the content in the background and that was the issue, but there’s absolutely no indication that I’ve run out of buffered content or how much buffering has been completed.