As The Big Bang Theory begins its 12th — and final — season our thoughts drift back to the very beginnings of the show. Before the girlfriends, before the weddings, wives, and children, there were two nerdy roommates with a beautiful new neighbor. So much of the show’s initial success depended on that relationship between Sheldon Cooper and Leonard Hofstadter, so it was important that the characters were cast well. Jim Parsons and Johnny Galecki were the first two actors signed for the show, and they reminisced with other cast members about the way they first met and developed that perfect chemistry. (Click on the media bar below to hear Johnny Galecki & Jim Parsons)
The Big Bang Theory Thursdays at 8/7c.on CBS.