In many ways, Leonard and Penny are at the centre of The Big Bang Theory. Leonard and Penny introduced Bernadette and Howard, who ended up getting married as well. They are the ones who could be ...

While Sheldon had a smart way to steal the show on The Big Bang Theory with his quirky and often inappropriate one-liners, ...

Bazingas abound when Leonard comes to fetch a sleepless Sheldon, who has broken into a children's ball pit. (Here's every single "Bazinga!" from seasons 1-4.) 4. The Roommate Agreement More than ...

The Big Bang Theory knew how to blow up the ratings, and now the numbers are doing all the talking. Read on for the most ...

The original group in The Big Bang Theory comprised four friends well established in the field of science working at Caltech: theoretical physicist Sheldon Cooper, applied physicist Leonard ...