After watching the making of 'The Big Bang Theory' I found out about the way the idea came about. The writer of the show said about how the idea first came to him when a friend told him about how he used to live a few years ago and the people he hung out with. He went on to say that this friend knew people who where extremely intelligent and friendly but didn't socialize with other people very often.
From this the writer thought of making a show about a group of nerdy intelligent guys who's new neighbor was a very attractive young woman. This awkward relationship between the nerds and this neighbor is the main focus of this series along with the nerd jokes and romantic relationships.
