Aired Thursday August 18,
9:00pm - 9:30pmon E4 Extra
The Big Bang Theory
Series 3 Episode 15: The Large Hadron CollisionLeonard is invited to Switzerland on Valentine's Day to see the world's largest particle accelerator. Sheldon is gutted when Leonard asks Penny to go with him, as a Valentine's Day treat, instead of him. Sheldon tries to coerce the couple into letting him take Penny's place, will they relent?
- Category
- Holiday / Sitcom
- Original air date
- 2010-02-08
Cast and crew
