Entertainment
I believe entertainment is a personal opinion.  If something is entertaining to you, it means your enjoying whatever is keeping your attention.  I guess that's the best way I can explain it.  So in my opinion it's not purely on culture.  What I find entertaining is my own personal choice I don't find something entertaining because everyone else does.  Jersey shore in my opinion has negative entertaining value, It's actually painful to watch.  Embarrassment is not entertainment, and if I have to change to channel I don't know how you can call that entertainment.  The magazines on walls near registers, I actually find those entertaining to read laughing at some of the things they say.  So I cant really use that as an argument to go with my opinion.