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Mensa-fied best friends and roommates Leonard and Sheldon, physicists who work at the California Institute of Technology, may be able to tell everybody more than they want to know about quantum physics, but getting through most basic social situations, especially ones involving women, totally baffles them. How lucky, then, that babe-alicious waitress/aspiring actress Penny moves in next door. Frequently seen hanging out with Leonard and Sheldon are friends and fellow Caltech scientists Wolowitz and Koothrappali. Will worlds collide? Does Einstein theorize in the woods?
S3, EP18 "The Pants Alternative"
Sheldon's stage fright stands between him and a coveted award.
S3, EP22 "The Staircase Implementation"
Leonard tells Penny about how he met Sheldon and what happened to the elevator.
S4, EP1 "The Robotic Manipulation"
Penny tags along on Sheldon's first date; Wolowitz finds a new use for a robotic arm.
S4, EP3 "The Zazzy Substitution"
When Sheldon searches for an alternative to human companionship, the guys become concerned.
