The Big Bang Theory

Leonard and Sheldon are brilliant physicists, the kind of "beautiful minds" that understand how the universe works. But none of that genius helps them interact with people, especially women. All this begins to change when a free-spirited beauty named Penny moves in next door. Sheldon, Leonard's roommate, is quite content spending his nights playing Klingon Boggle with their socially dysfunctional friends, fellow Caltech scientists Wolowitz and Koothrappali. However, Leonard sees in Penny a whole new universe of possibilities...including love.

Season 1
Leonard and Sheldon are brilliant physicists, the kind of "beautiful minds" that understand how the universe works. But none of that genius helps them interact with people, especially women. All this begins to change when a free-spirited beauty named Penny moves in next door. 

Season 2
This season, Leonard gets a girl. So does Sheldon. (Sheldon?!) Howard drives the Mars Rover into a ditch. Raj woos a terminator. Gorgeous girl-next-door Penny falls under the spell of Age of Conan. And super-smart, überconfident Leslie Winkle reduces mere men to spineless jellyfish.

Season 3
Leonard's roommate, is quite content spending his nights playing Klingon Boggle with their socially dysfunctional friends, fellow Caltech scientists Wolowitz and Koothrappali. However, Leonard sees in Penny a whole new universe of possibilities ... including love.

Season 4
This season the Big Bang gang’s romantic universe expands. On the rebound from Penny, Leonard falls into the arms of Raj’s sister Priya. Sheldon gets a girlfriend, or rather a friend who is a girl: Amy, a dour neurobiologist who declares herself besties with Penny. 

Season 5
Regarding the opposite sex, they’re on a steep learning curve. In every other sense, they’re geniuses. Join physicists Leonard Hofstadter (Johnny Galecki) and Sheldon Cooper (Jim Parsons) as they ponder black holes, chemical deviations, girls, and other mysteries of the universe.

Season 6
Whether on or above Earth, hilarity is outrageously universal in TV’s most popular comedy featuring four forward-thinking but socially backward geniuses.

Season 7
Socially challenged they remain, but the scientific geniuses of The Big Bang Theory always deliver hilarious results.

Season 8
Doctors Hofstadter & Cooper remain socially challenged, but the two genius roommates and their friends Penny, Howard, Raj, Amy & Bernadette always produce hilarious results.

Season 9
Leonard and Sheldon are brilliant physicists -- geniuses in the laboratory, but socially challenged everywhere else.

Season 10
This season, they'll do it again with family. Meanwhile, Amy and Sheldon contemplate a coitus clause; Howard and Bernadette prepare for a little Wolowitz: and Raj juggles two girlfriends!

Season 11
Drs. Leonard Hofstadter (Galecki) and Sheldon Cooper (Parsons) are brilliant physicists – geniuses in the laboratory, but socially challenged everywhere else. 

Season 12
Leonard and Sheldon are brilliant physicists – geniuses in the laboratory, but socially challenged everywhere else.