Jim Parsons' iconic sitcom character Sheldon is summed up in four words that are used frequently on The Big Bang Theory.

No one does a running gag quite like The Big Bang Theory. From "Soft Kitty" to Penny's check engine light, the series had some great running gags.

To underscore those rare instances when he succumbs to his humorous side, Sheldon will punctuate his jokes and pranks with the triumphant exclamation “Bazinga!” after (sometimes long after) his jokes ...

The bond between these two characters in The Big Bang Theory goes beyond friendship and becomes an integral part of the show's appeal.