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Available Episodes

The Big Bang Theory
S1 | E13 The Bat Jar Conjecture 20 min • Expires in 6 days
S1 | E13 The Big Bang Theory 20 min • Expires July 10 • Airs Today
Sheldon finds himself booted from the gang's Physics Bowl team and replaced with Leslie so he forms his own team hoping to prove he's superior. ..More
The Big Bang Theory
S1 | E14 The Nerdvana Annihilation 19 min • Expires in 6 days
S1 | E14 The Big Bang Theory 19 min • Expires July 10 • Airs Today
When the delivery of a full-size prop of 1960's The Time Machine makes Penny miss work, she scolds Leonard about his sci-fi collectibles. He decides it's time to give up such childish pursuits. ..More
The Big Bang Theory
S1 | E15 The Pork Chop Indeterminacy 20 min • Expires in 6 days
S1 | E15 The Big Bang Theory 20 min • Expires July 10 • Airs Today
The rest of the gang fall for Sheldon's twin sister, and Leonard's plan to win her heart is derailed when Sheldon declares he'll be the one to decide who can date her. ..More
The Big Bang Theory
S1 | E16 The Peanut Reaction 19 min • Expires in 6 days
S1 | E16 The Big Bang Theory 19 min • Expires July 10 • Airs Today
Penny wants to throw a surprise party for Leonard but Sheldon's indulgence at an electronics store throws her off-track. ..More
The Big Bang Theory
S1 | E17 The Tangerine Factor 19 min • Expires in 6 days
S1 | E17 The Big Bang Theory 19 min • Expires July 10 • Airs Today
Penny's break-up spurs Leonard to summon the courage to ask her out, and each goes to Sheldon for advice on their upcoming date. ..More
The Big Bang Theory
S2 | E1 The Bad Fish Paradigm 20 min • Expires in 6 days
S2 | E1 The Big Bang Theory 20 min • Expires July 10 • Airs Today
Penny opens up to a reluctant Sheldon after a less-than-stellar first date with Leonard, placing him in the uncomfortable position of having to keep a secret. ..More
The Big Bang Theory
S2 | E2 The Codpiece Topology 20 min • Expires in 6 days
S2 | E2 The Big Bang Theory 20 min • Expires July 10 • Airs Today
Seeing Penny with another guy sends Leonard back to Leslie Winkle much to Sheldon's dismay. ..More
The Big Bang Theory
S2 | E3 The Barbarian Sublimation 20 min • Expires in 6 days
S2 | E3 The Big Bang Theory 20 min • Expires July 10 • Airs Today
Penny becomes addicted to an online game based on the world of Conan the Barbarian and persistently pesters Sheldon for advice. ..More
The Big Bang Theory
S2 | E4 The Griffin Equivalency 20 min • Expires in 6 days
S2 | E4 The Big Bang Theory 20 min • Expires July 10 • Airs Today
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 | E5 The Euclid Alternative 19 min • Expires in 6 days
S2 | E5 The Big Bang Theory 19 min • Expires July 10 • Airs Today
An intervention is used to try to force Sheldon to overcome his fear of driving. ..More
The Big Bang Theory
S2 | E6 The Cooper-Nowitzki Theorem 20 min • Expires in 6 days
S2 | E6 The Big Bang Theory 20 min • Expires July 10 • Airs Today
Sheldon and his friends are mystified when a younger undergraduate student is attracted to him. ..More
The Big Bang Theory
S2 | E7 The Panty Piñata Polarization 20 min • Expires in 6 days
S2 | E7 The Big Bang Theory 20 min • Expires July 10 • Airs Today
When Sheldon bans Penny from the apartment for numerous minor infractions, she decides to retaliate. Howard and Raj search for the America's Next Top Model house. ..More
The Big Bang Theory
S2 | E8 The Lizard-Spock Expansion 19 min • Expires in 6 days
S2 | E8 The Big Bang Theory 19 min • Expires July 10 • Airs Today
Sheldon wants to use an alternate version of rock-paper-scissors to help resolve conflicts. A girl Wolowitz has a major crush on falls for Leonard. ..More
The Big Bang Theory
S2 | E9 The White Asparagus Triangulation 20 min • Expires in 6 days
S2 | E9 The Big Bang Theory 20 min • Expires July 10 • Airs Today
Sheldon is overexuberant that Leonard finally has a girlfriend matching his high standards. ..More
The Big Bang Theory
S2 | E10 The Vartabedian Conundrum 20 min • Expires in 6 days
S2 | E10 The Big Bang Theory 20 min • Expires July 10 • Airs Today
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 in 6 days
S2 | E11 The Big Bang Theory 20 min • Expires July 10 • Airs Today
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 in 6 days
S2 | E12 The Big Bang Theory 20 min • Expires July 10 • Airs Today
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 in 6 days
S2 | E13 The Big Bang Theory 20 min • Expires July 10 • Airs Today
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 in 6 days
S2 | E14 The Big Bang Theory 20 min • Expires July 10 • Airs Today
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 | E15 The Maternal Capacitance 20 min • Expires in 6 days
S2 | E15 The Big Bang Theory 20 min • Expires July 10 • Airs Today
A visit from Leonard's mother ends up bringing him and Penny closer. ..More