Apple warns AltConf: Do not show the WWDC keynote stream in your Viewing Room
altconf.pr.co
altconf.pr.co
[1] http://www.apple.com/live/
Live streaming video requires Safari 6.0.5 or later on OS X v10.8.5 or later; Safari on iOS 6.0 or later. Streaming via Apple TV requires second- or third-generation Apple TV with software 6.2 or later.
That's news?
Yes. Try playing any other major sport or media event that is available as a live stream (or even broadcast radio or CDs) in a public setting, and you will get similar messages from lawyers. If they find out that you did after the event, chances are they will include a steep bill.
A difference between this and many such major events is that Apple doesn't appear to want to license the stream for public viewing to anybody. I don't think that makes a difference w.r.t. your question.