I'm skeptical that viewers will prefer this live scheduled format rather than simply posting all the videos to be viewed on-demand. Don't get me wrong, I love the idea of this anachronism (and especially their 80s-era channel ID logo to go along with it) but personally I prefer to consume videos from tech conferences on-demand. [1]
It looks like they are also posting the videos for on-demand viewing in the Best-Of section, so maybe the live scheduled format is just a delightful gimmick.
[1] https://media.ccc.de is my favourite