Once the show starts EAA usually has a stream of what goes out over the
PA system / WOSH. Occasionally they switch to the tower. It looks like
they don't start until tomorrow though.
http://www.airventure.org/radio/about.html

I didn't make it there last year, so I was listening while painting my
house. I would have thought listening to an airshow over the radio
wouldn't be interesting, but since I've seen most of the acts before, I
could figure out what was going on. Jimmy Franklin's jet-powered Waco
was easily identifiable. Little did we know at the time that it would
be the last time I would hear it.

Chief McGee wrote:
I hear they are having a little fly-in at Oshkosh next week. Is there a way
to listen to ATC over the net. Could not find any info on the EAA site.
Thanks