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The Big Bang Theory

Sitcom

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?

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The Big Bang Theory Cast

Upcoming TV Listings for The Big Bang Theory

The Big Bang Theory The Conference Valuation

When Penny and Bernadette go to San Diego for a pharmaceutical sales convention, Wolowitz is left in charge of the kids; Sheldon finds a book about experimenting on kids.

12:00 AM on CTV Comedy - East

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The Big Bang Theory The Laureate Accumulation

When competitors Pemberton and Campbell charm America on a publicity tour, Sheldon and Amy try to win over Nobel laureates Kip Thorne, George Smoot and Frances Arnold; Halley's fear of the dark leads to opportunity and conflict.

12:30 AM on CTV Comedy - East

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The Big Bang Theory The Decision Reverberation

Koothrappali is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life; Leonard wants to be the principal investigator on a plasma physics study.

1:00 AM on CTV Comedy - East

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The Big Bang Theory The Large Hadron Collision

Leonard must choose who to bring with him when he goes to see the Large Hadron Collider on Valentine's Day.

1:00 AM on WPIX New York (SUPERSTATION)

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The Big Bang Theory The Misinterpretation Agitation

The guys try to help when Penny is faced with an awkward dilemma at work; Bernadette and Amy discuss sexuality and female scientists.

3:35 AM on KTLA Los Angeles, CA

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The Big Bang Theory The Decision Reverberation

Koothrappali is worried people won't take him seriously in his own field after publishing a paper that suggests he may have discovered alien life; Leonard wants to be the principal investigator on a plasma physics study.

4:00 AM on CTV Comedy - East

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The Big Bang Theory The Plagiarism Schism

Kripke has proof that Dr. Pemberton plagiarized his thesis in college, and Sheldon and Amy aren't sure if they should turn him in or not; Wolowitz learns that Bernadette wasn't the only waitress at the Cheesecake Factory who had a crush on him.

4:30 PM on CTV Comedy - East

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The Big Bang Theory The Prom Equivalency

Sheldon feels pressured to participate in romantic traditions when the gang re-creates a high-school prom on the roof.

4:30 PM on Peachtree TV (Canada)

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The Big Bang Theory The Maternal Conclusion

Leonard is pleasantly surprised when Beverly comes to visit and she's genuinely kind to him, until he finds out the real reason she's there; Denise and Stuart overstay their welcome at the Wolowitz house.

5:00 PM on CTV Comedy - East

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The Big Bang Theory The Change Constant

Sheldon and Amy await big news.

5:30 PM on CTV Comedy - East

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