Hard to believe photo here. Via.
I used to work at what was then called the Universal Amphitheatre as a customer service rep. Some acts used to set up large projectors or other equipment right in the middle of the room. I had the lousy job of telling customers who had bought prime center seats that they could either deal with the obstruction, move to seats at the far corners of the Amphitheatre, or get refunds. Good times.