Watch The Big Bang Theory Online: Season 11 Episode 21

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Did Koothrappali admit that he was wrong?

That was addressed on The Big Bang Theory Season 11 Episode 21 when he took all the credit for Penny's discovery and it put a string of friendships on the line. 

Meanwhile, Sheldon's comic book store experience changed when Neil Galman emerged as a fan of Stuart's store and tried to make it bigger than it was. 

But did Sheldon continue to attend the store, or did he find another?

Use the video above to watch The Big Bang Theory online right here via TV Fanatic. 

Get up to speed on all of the witty one-liners right now. 

Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.

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