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Four Nights a Week or On Demand

The Big Bang Theory

AVAILABLE EPISODES

The Big Bang Theory
S2 | E4 The Griffin Equivalency 20 min • Expires today
S2 | E4 The Big Bang Theory 20 min • Expires September 28
Full of confidence following being named one of People's 30 to Watch Under 30, Raj hits on Penny and becomes impossibly arrogant. ..More
The Big Bang Theory
S2 | E10 The Vartabedian Conundrum 20 min • Expires Tomorrow
S2 | E10 The Big Bang Theory 20 min • Expires September 29
Leonard seeks Penny's counsel when his relationship with Stephanie takes off faster than he'd like. Sheldon's hypochondriac tendencies get the better of him. ..More
The Big Bang Theory
S2 | E11 The Bath Item Gift Hypothesis 20 min • Expires Tomorrow
S2 | E11 The Big Bang Theory 20 min • Expires September 29
Sheldon irks the gangs with his obsession with proper Christmas gift protocol. Leonard's crushed when Penny dates a colleague of his. ..More
The Big Bang Theory
S2 | E12 The Killer Robot Instability 20 min • Expires Tomorrow
S2 | E12 The Big Bang Theory 20 min • Expires September 29
Penny's criticism of Wolowitz's romantic life pushes him into depression and AWOL for a fighting robot battle the rest of guys are depending on him for. ..More
The Big Bang Theory
S2 | E13 The Friendship Algorithm 20 min • Expires Tomorrow
S2 | E13 The Big Bang Theory 20 min • Expires September 29
Looking to get friendly with Barry Kripke to gain access to a piece of high-tech lab equipment, Sheldon develops a flowchart process to make friends. ..More
The Big Bang Theory
S2 | E14 The Financial Permeability 20 min • Expires Tomorrow
S2 | E14 The Big Bang Theory 20 min • Expires September 29
When Sheldon loans money to Penny so she can pay her rent, it leads to Leonard coming face-to-face with her ex, Kurt. ..More
The Big Bang Theory
S2 | E21 The Vegas Renormalization 20 min • Expires in 5 days
S2 | E21 The Big Bang Theory 20 min • Expires October 3
Leonard and Raj take Wolowitz to Las Vegas to help him get over his break-up with Leslie. Sheldon, home alone and looking forward to it, locks himself out and has only one other place to stay, Penny's. ..More
The Big Bang Theory
S2 | E22 The Classified Materials Turbulence 18 min • Expires in 5 days
S2 | E22 The Big Bang Theory 18 min • Expires October 3
Leonard is torn between being honest or self-serving when Stuart asks his advice for an upcoming second date with Penny. Wolowitz realizes there's a crucial error in a toilet he designed for the International Space Station. ..More
The Big Bang Theory
S2 | E23 The Monopolar Expedition 20 min • Expires in 5 days
S2 | E23 The Big Bang Theory 20 min • Expires October 3
The guys' prestigious offer to work over the summer at the North Pole, and Penny's resultant behavior leaves Leonard unsure if he should go. ..More
The Big Bang Theory
S3 | E1 The Electric Can Opener Fluctuation 20 min • Expires in 5 days
S3 | E1 The Big Bang Theory 20 min • Expires October 3
Discovering Leonard, Raj and Howard fudged the results of his Arctic research expedition, a disgraced Sheldon heads home to Texas. ..More
The Big Bang Theory
S3 | E2 The Jiminy Conjecture 20 min • Expires in 5 days
S3 | E2 The Big Bang Theory 20 min • Expires October 3
Sheldon and Howard wager comic books over a cricket's species. Meanwhile, a less-than-perfect romantic night agonizes Leonard and Penny. ..More
The Big Bang Theory
S3 | E4 The Pirate Solution 20 min • Expires in 6 days
S3 | E4 The Big Bang Theory 20 min • Expires October 4
Facing a return to India, Raj needs a job desperately enough to consider working for Sheldon. Meanwhile, Howard becomes a third wheel to Leonard and Penny. ..More
The Big Bang Theory
S3 | E5 The Creepy Candy Coating Corollary 20 min • Expires in 6 days
S3 | E5 The Big Bang Theory 20 min • Expires October 4
Sheldon looks forward to squaring off against an actor from the Star Trek universe he holds enmity towards in a fantasy card game tournament. Wolowitz cashes in on an old pact with Leonard to get Penny to set him up with a friend of hers. ..More
The Big Bang Theory
S3 | E6 The Cornhusker Vortex 19 min • Expires in 6 days
S3 | E6 The Big Bang Theory 19 min • Expires October 4
Leonard, hoping to fit in with Penny's football-loving friends, gets tutored in the sport by Sheldon. Raj is infuriated when Wolowitz's skirt-chasing leads to the loss of his prized patang. ..More
The Big Bang Theory
S3 | E7 The Guitarist Amplification 19 min • Expires in 6 days
S3 | E7 The Big Bang Theory 19 min • Expires October 4
Leonard and Penny's first big fight sees Sheldon playing mediator due to childhood trauma that's left him with an inability to be around loud verbal conflicts. ..More

About

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.