Hi, I don't know if this is just for me, but seems like the audio and the video are slightly out of sync. I tried to restart it a few times and download. Its not too bad and enough to understand the lesson, but noticeable.
Thanks for catching that Mauro and Omar! I fixed it and in the process of reuploading. I don't have direct permissions to change it, but I'll update here when it's fixed.
If you don't want to be kept waiting -- since you have it downloaded, you could throw the video file into Blender's video editor, and shift the audio forward 7 frames, and keep watching from there. That should help you watch without the awkward sync issue.