Ask HN: What are your favorite programming videos?

Hey all!

I'm a big fan of Destroy All Software, but have watched almost all of them and the rate for new videos is very slow right now.

I really enjoy DAS for a few reasons: - good variety in subjects - explains often complex things in a simple way - live coding - ruby, which is a language I know, so that makes things appear more approachable

Railscast from Ryan Bates is another series that comes to mind.

Do you have any other similar people doing such videos?