Big Bang Theory has grown from the little show about a group of nerdy scientists to the biggest show on television in six seasons. Kunal Nayyar has enjoyed playing Raj Koothrappali, an Indian astrophysicist, who can’t talk to girls without a having a few drinks first and who’s been watching his friends get relationships, while he spends Friday nights alone. We caught up with Kunal Nayyar to chat about Big Bang Theory’s success and Raj’s journey to getting a girlfriend.