The Large Hadron Collision

8
/10
When Leonard is offered a trip to Switzerland on Valentine's Day to visit the CERN laboratory, Sheldon uses any and all means to be his guest instead of Penny.
S3.E15

The Big Bang Theory

The Large Hadron Collision

season 3 episode 15

episode aired on february 2010

Episode rating

8.3
E1
7.7
E2
8.1
E3
8.0
E4
8.3
E5
7.4
E6
7.8
E7
8.9
E8
8.3
E9
8.4
E10
8.3
E11
8.2
E12
8.0
E13
8.4
E14
8.0
E15
8.2
E16
8.4
E17
8.4
E18
7.8
E19
8.1
E20
8.1
E21
9.0
E22
8.6
E23

Cast of episode