I've tried to watch "America's Got Talent" several times, but I just can't stand it. The video editing has to be just about the worst in the industry, so after an episode or two, I stop watching. The show CONSISTENTLY pans away from the performers to the audience, the judges, the moderator (now Jerry Springer). Especially with the visual performers (dancers, magicians, acrobats, etc.) you really don't get the gist of the act at all.
Below is a video from Britain's Got Talent of a couple of fun dancers - but I see that it's edited in exactly the same way. Check it out and see if I'm not right.