This is a nice topic.
Thanks for posting such topics in Bengal Spider. For many people may be the meaning of Social Entertainment is not clear. In my opinion social entertainment is that form of Entertainment which is beneficial for the whole society without any negative affects.
Dances and music are a form of Social entertainment. In the villages social entertainment is the main form of entertainment. However social entertainment can change the society by changing the view points of some people and can change the mentality of people.
This can not bring a vast change in our society but a change is possible always.