When the auditions for America's Got Talent (AGT) air, they show this huge hall with what appears to be several hundred people waiting to go on stage. Now I realize only a small number of acts that appear before the judges are shown on TV. But it doesn't seem possible that all of the contestants you see backstage with ID numbers actually get in front of the judges and the audience.
Each act plus the judge's comments takes several minutes, and some (such as acrobatic and magic acts) may take a while for equipment set up. So it seems that at most maybe 6 or 7 acts can be seen by the judges per hour.
How long do the auditions last each day? If it was six hours (allowing for breaks), that would still be only 35 to 40 acts. If they run over two days, that's still only 80 acts max. It appears there are a lot more acts than that waiting to audition in the main hall.
And if the auditions do last all day, do they have more than one audience seating?