Was BarCampWorldwide -- now, BarCampEarth -- a simultaneous compendium of Barcamps around the world happening simultaneously with FooCamp.
ScottBrooks is suggesting that eDome (http://edome.cambrianc.on.ca/about.htm) in Sudbury might be available as a central facility for broadcasting. It's on the Internet2 network with massive bandwidth fiber connections and has a full digital broadcasting and production facilities.
Update: Monday May 15 10:00
I have made the requests for the facility and seeing how we can make this work. As i have more information i will be sure to pass it along to the community. I believe that we will be able to get things moving.