An interesting argument, though you could attack both the meaning of broadcast when the scope was purely local, and of accessibility to the public, assuming a VIP party was invite-only and/or that the feed was view-only rather than offering interactive terminals. But it's certainly no more strained than some of the claims that have been raised in industry-driven prosecutions.

Apologies if I came off as snippy yesterday. The strident tone of the uncrunched.com link didn't sit well with me, so I read the thread with a rather jaundiced eye.