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Stephen Hawking - All Big Bang Theory Appearances
Sheldon Meets Stephen Hawking (Clip) | The Big Bang Theory | TBS
'Big Bang Theory' Cast remember Stephen Hawking
Howard Wolowitz Is Stephen Hawking - The Big Bang Theory
Sheldon REALLY Wants to Meet Stephen Hawking | The Big Bang Theory
When Simon Helberg Met Stephen Hawking | CONAN on TBS
The Big Bang Theory S05E21- stephen hawking
Sheldon Meets Stephen Hawking - The Big Bang Theory
Neil deGrasse Tyson on the show "The Big Bang Theory"
Guys meet Bill Gates - The Big Bang Theory
Nerdiest Celebrity Cameos - Part 1 (Mashup) | The Big Bang Theory | TBS
References to The Big Bang Theory | Young Sheldon
