The Big Bang Theory Episode Details |
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The Large Hadron Collision Season 3 - Episode 15 |
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Leonard can only bring one guest on a trip to see CERN's Large Hadron Collider in Switzerland on Valentine's Day. |
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Production Number: | |
Aired On: | Monday 8th of February 2010 on CBS ( US ) |
Written by: | TBA |
Directed by: | TBA |
Starring: |
Johnny Galecki
as Leonard Hofstadter Jim Parsons as Sheldon Cooper Kaley Cuoco as Penny Simon Helberg as Howard Wolowitz Kunal Nayyar as Raj Koothrappali Erin Pickett as Cafeteria Patron ( uncredited ) |