Sheldon (Jim Parsons) and Leonard (Johnny Galecki) are not only coworkers, but they’re also roommates and best friends. Although they both have different personalities, they share a special bond - Leonard helps Sheldon in social situations, and Sheldon helps Leonard with science problems. Watch some of the best Sheldon and Leonard moments on The Big Bang Theory, and let us know your favorite in the comments! Watch The Big Bang Theory on TBS. #TBS #TheBigBangTheory #JimParsons #JohnnyGalecki SUBSCRIBE: bit.ly/TBSSub Download the TBS App: bit.ly/1qBbkMW About The Big Bang Theory: Leonard and Sheldon are brilliant physicists, the kind of ''beautiful minds'' that understand how the universe works. But none of that genius helps them interact with people, especially women. All this begins to change when a free-spirited beauty named Penny moves in next door. Starring Johnny Galecki, Jim Parsons, Kaley Cuoco, Simon Helberg, Kunal Nayyar, Mayim Bialik, and Melissa Rauch. Crea...