Mark Cuban posits that the bandwidth is not there except at enormous cost.
” There are maybe 3 companies that can stream to 1mm or more simultaneous users. Google, Limelight and Akamai. And that 1mm simultaneous users isnt just for your content. That is for EVERYONE’s content and they can’t get much beyond 2mm without big problems. More importantly, if you want to stream your content to millions of users at once, its going to cost you an incredible amount of money.”