Is there any kind of streaming service like Twitch.tv but for programmers?

Maybe it's weird... but I really like watching other people writing a project (Like in the Ludum Dare), I like to see how they tackle the design, how they work, what cool tricks they use, etc.

You can even interact with them via chat, and not only help but also ask questions about what they are doing... is great for people who are still learning.

Any?