105
The Hot Tub Contamination
Things don't run smoothly as Amy and Sheldon's cohabitation experiment continues, forcing Leonard and Penny to intervene when the couple...
102
The Military Miniaturization
The guys' heads are in a spin when an Air Force bigwig approaches them about their revolutionary gyroscope invention; and Bernadette...
1015
The Locomotion Reverberation
With Sheldon hindering progress on the guidance-system project, Leonard and Stuart figure the only way they can get back on track...
1023
The Gyroscopic Collapse
Leonard, Sheldon and Wolowitz celebrate the successful completion of their top-secret military project, until an unpleasant surprise leaves their heads spinning....
77
The Proton Displacement
Sheldon feels left out when Professor Proton asks Leonard to read his latest publication, so he befriends a TV personality from...
1019
The Collaboration Fluctuation
Raj moves in with Leonard and Penny and a period of adjustment begins for the three, while the usually self-centered Sheldon...
69
The Parking Spot Escalation
A battle over a beloved parking spot leads to broken friendships and uncomfortable nudity., Sheldon gets all revved up when...
611
The Santa Simulation
A game of Dungeons & Dragons triggers Sheldon's memories of Christmases past, while Penny, Bernadette and Amy play matchmaker for Raj.,...