The video of lecture 1 has been posted.
Unfortunately, there is a bit of the board cropped on the right; I did not notice this while setting up the Flip camera... also, the flip camera ran out of power 15 minutes short of the lecture end. Next time I will record directly with the laptop, which will be much simpler as well.
Let me know whether the quality of what you see is sufficient... I am on a learning curve on the file size / compression amount / ... that I can post to YouTube.