It aired from september 24, 2007, to may 16, 2019, running for 12 seasons and 279 episodes. In the chaotic world of the big bang theory, where social awkwardness was practically a character in itself, one character stood out in a way that was… well, unexpectedly revolutionary The chemistry between sheldon and leonard, and the show's accessible science approach, are highlights.
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Since its premiere in 2007, the big bang theory has starred johnny galecki as leonard hofstadter, jim parsons as sheldon cooper, kaley cuoco as penny, simon helberg as howard wolowitz and kunal nayyar as raj koothrappali.
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