One interesting suggestion I received from a viewer out there about the Joy of Code video series is to make the videos downloadable, because YouTube is blocked in a number of schools.
That seems like an obviously good idea, so I’ve done that now. Under every Joy of Code video, you will now see a download link. (On some (most?) systems, just clicking the link plays the video in the browser, so right-click, and choose “Save Link As…” or the equivalent option in your browser.)
Another advantage of this is that you can play the video in its original resolution (without up- or down-scaling), which should give you good high-def clear text on screen.