The Big Bang Theory
The Large Hadron Collision
Season 3 Episode 15 of 23
Leonard is invited to visit the Large Hadron Collider in Switzerland and asks Penny to join him as a Valentine's Day treat. However, Sheldon tries to persuade the couple to allow him to take her place
The Big Bang Theory airs on E4 at 6:00 PM, Thursday 12 September. (Subtitles, audio description.)
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Movie ➝ Drama
Sitcom
Johnny Galecki
Actor
Jim Parsons
Actor
Kaley Cuoco
Actor