That is why the MSM will be limiting their shots of the crowd and why you'll see a lot of the same people in different shots.
I had a friend that used to live on the Suwannee River near the Ga/Fl line. Years ago some famous fisher who had a TV show came to film an episode of his show on the Suwannee.
This was a big deal at the time so my friend went to watch the guy fish. My friend said he followed the guy the entire time that he was there and that during the guy's time fishing he only caught one fish.
The friend figured that since only one fish was caught that the episode on the Suwanne wouldn't air, but he said he was wrong. The episode did air, and unless you knew better you would think that the guy caught fish all day long because of the different camera angles that they showed of that one single fish.