Been to then for the past 2 years. There are no real activities per-say. But they do filming of allot of there shows from in front of the Sourcers Hat at MGM. It usually takes place majority of the day. Also Millionare is switched to sports for that weekend with usually some famous guest there as well. It has very little effect on the parks as far as rides go. But if you loose your man, chances are thats where you will find him.
He'll be eating his Cold Pizza, while PTI for some Around the Horn.