The Big Bang Theory

2007•3 series•Entertainment / Comedy
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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?

The Comic Book Store Regeneration: Episode Image
Episode 15The Comic Book Store Regeneration

Comic Book Store Regeneration. Howard gets unsettling news amidst the excitement of the comic book store reopening, and Penny doesn't practice what she preaches. S8, Ep15

The Intimacy Acceleration: Episode Image
Episode 16The Intimacy Acceleration

An experiment designed to make people fall in love piques Penny and Leonard's interest. Meanwhile, Leonard, Amy, Raj and Emily encounter a 'zombie.' S8, Ep16

The Colonization Application: Episode Image
Episode 17The Colonization Application

There's trouble in paradise when Amy learns Sheldon signed up for a one-way mission to colonise Mars. Leonard makes an 'adult' purchase for Penny. S8, Ep17

The Leftover Thermalization: Episode Image
Episode 18The Leftover Thermalization

An electrical short thaws the last meal cooked by Mrs. Wolowitz, and Sheldon and Leonard's work is featured in a magazine, but only one gets credit. S8, Ep18

The Skywalker Incursion: Episode Image
Episode 19The Skywalker Incursion

Leonard and Sheldon consider dropping by George Lucas' Skywalker Ranch when a speaking engagement puts them nearby. S8, Ep19

The Fortification Implementation: Episode Image
Episode 20The Fortification Implementation

Fortification Implementation. Sheldon and Amy reach a crossroad, a man claiming to be Wolowitz's half-brother shows up, and Penny and Leonard argue live on Wil Wheaton's podcast. S8, Ep20

The Communication Deterioration: Episode Image
Episode 21The Communication Deterioration

Communication Deterioration. NASA asks Raj to craft a message for aliens in the event of contact, and Penny must choose between an audition or her job in pharmaceutical sales. S8, Ep21

The Graduation Transmission: Episode Image
Episode 22The Graduation Transmission

Wolowitz and Sheldon can't get a drone to fly, Leonard nearly misses giving a commencement address, and Raj pits his parents against each other. S8, Ep22

The Maternal Combustion: Episode Image
Episode 23The Maternal Combustion

Leonard and Sheldon's mothers come to town to celebrate their sons getting an award, but the opinionated women engage in an altercation over religion. S8, Ep23

The Commitment Determination: Episode Image
Episode 24The Commitment Determination

Leonard and Penny are pressured to set a wedding date by Sheldon, whose relationship with Amy has taken an interesting turn. S8, Ep24

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