Hey Jonathan, I finally had a little spare time and watched all your videos. First off, the videos are really excellent; you have a great knack for explaining things in an easy to understand manner with a great fluidity to your speaking.
I only have two very minor complaints.
1) It feels like I am watching your videos on 1.25 speed. Possibly slow down just a little and don't feel rushed to move onto the next concept.
2) In the first video, considering this is for beginners, it might be a good idea to explain shift+enter/?/some basic syntax etc instead of in the second video.
Overall excellent work and I would love to see some more videos in the intermediate range!
Thanks.