intercontinental cultural differences: 1

My complete cultural thesis is based on watching daytime TV feeds from Detroit...
We think that TV is bad and getting worse in the UK, well, the US has that nailed. OK, they produce Mad Men and Weeds and a few things like that, but the majority of output is so brash, and there is a lot of it.
Chat shows require you to a) dance (Ellen) b) cry (Oprah), c) give stuff away (Oprah) d) cook (Rachel Ray) e) talk incessantly (all of them) f) applaud (all of them).
The applause to content ratio is about 8 to 1.
Why so noisy?