>> smell that? that's the smell of new comic books. >> oh, yes. >> sheldon played so wonderfully by jim parsons, injected this humanity into him. >> you care about sheldon. he's not comic relief. he's the hero in a way. >> sheldon, what are you doing? >> same thing for three days. figure out if electrons have no mass when traveling through a gr graphine sheet. >> the characters want to be included. >> there's the beautiful penny who lives across the hall. >> welcome to the building. >> thank you. maybe we can have coffee sometime. >> great. >> great. >> she's funny. but they show her as having a