I have had a chance to look behind the scenes at the last 2 broadcasts and have come away amazed by the level of technology and professionalism that is applied the broadcast. (broadcasters aside)
I have no idea what the budget is for the event but the broadcast truck, jumbotron(s), cameras, cable runs, microphones, monitors, wireless mics, head sets, back channel communications and the camera towers have to add up to a goodly sum. Even more impressive is the amount of prep and coordination that the folks from CMU tv put into the effort.
We are lucky to have them and wrct helping to share the love on raceday.