The rise of livecoding, especially with the ability to now stream any kind of programming on Twitch, should lead to a reevaluation of how to properly present coding live in an engaging manner.

Recently, YouTuber slowbeef has started streaming live ROMhacking of a Japanese ROM to translate it into English (archive of 1st stream: http://youtu.be/kCaj88nLY4o ). While this example is not explicitly coding, the emphasis on explanation shows how important presentation can be to engaging code demos.

I've been working on Twitch-streaming workflows myself for potential live code streaming. Just enabling OBS and turning on a webcam while coding is not enough to be engaging ipso facto. There needs to be some semblance of planning beforehand. (also keep in mind that any code you stream may be seen on mobile devices, so you will have to increase font size accordingly.)