The Big Bang Theory

Catch up TV on The Big Bang Theory. Watch the latest and all other episodes of The Big Bang Theory now online, broadcasted on Channel 9. Catch up on your favorite Channel 9 TV show: The Big Bang Theory. Replay tv on its best! Leonard and Sheldon are brilliant but socially awkward physicists. Enter beautiful, street-smart neighbor, Penny, who aims to teach them a thing or two about life. Despite their on-again, off-again relationship in the past, Leonard believes he's found true love with Penny. Even Sheldon has found a female companion - entering into a "Relationship Agreement" with neurobiologist Amy Farrah Fowler. In their free time, Leonard and Sheldon continue to enjoy frequent trips to the comic book store with their ever-expanding universe of friends, including fellow scientists Raj and Howard, and Howard's adorable microbiologist wife, Bernadette.

Latest videos
Ep 7 The Veracity Elasticity 20:00

Ep 7 The Veracity Elasticity

3.0 159 x
Amy lies about repairs being made to her apartment so she can continue living with Sheldon; Leonard lets Penny decorate Sheldon's old room.
Ep 6 The Fetal Kick Catalyst

Ep 6 The Fetal Kick Catalyst

4.0 143 x
Penny learns there are fans of her performance in "Serial Ape-ist" when she and Leonard attend a Comic Con event; Amy hosts a brunch at Penny's apartment; Wolowitz makes an impulsive purchase.
Ep 5 The Hot Tub Contamination

Ep 5 The Hot Tub Contamination

4.0 97 x
Things do not run smoothly when Amy moves in with Sheldon, and Leonard and Penny have to intervene; Howard and Bernadette find unexpected guests at their house when they decide to cancel their vacation plans.
Ep 4 The Cohabitation Experimentation

Ep 4 The Cohabitation Experimentation

3.0 175 x
After her apartment floods, Amy suggests that she and Sheldon move in together; Koothrappali finds out the gender of Howard and Bernadette's baby before they do.
Ep 3 The Dependence Transcendence

Ep 3 The Dependence Transcendence

4.5 265 x
Sheldon tries to stay awake with an energy drink as the gang races to finish its government project on time; Penny and Amy attend a gathering at Bert the Geologist's house; Koothrappali learns Bernadette's true feeling about her pregnancy.
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