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The Big Bang Theory

AVAILABLE EPISODES

The Big Bang Theory
S5 | E2 The Infestation Hypothesis 18 min • Expires Tomorrow
S5 | E2 The Big Bang Theory 18 min • Expires January 16
A battle of wills between Sheldon and Penny leaves Amy caught in the middle, while Leonard tries to spice up his long-distance relationship with Priya (AARTI MANN). ..More
The Big Bang Theory
S5 | E3 The Pulled Groin Extrapolation 19 min • Expires Tomorrow
S5 | E3 The Big Bang Theory 19 min • Expires January 16
Attending a co-worker's wedding, Leonard and Amy (MAYIM BIALIK) get to know each other better, while Howard and Bernadette spend the weekend with Mrs. Wolowitz! ..More
The Big Bang Theory
S5 | E4 The Wiggly Finger Catalyst 19 min • Expires Tomorrow
S5 | E4 The Big Bang Theory 19 min • Expires January 16
When Raj is upset he's the only one of the four guys who's not in a relationship, Penny sets out to find the perfect date, introducing him to Emily, a girl he can actually talk to! ..More
The Big Bang Theory
S5 | E5 The Russian Rocket Reaction 20 min • Expires Tomorrow
S5 | E5 The Big Bang Theory 20 min • Expires January 16
Sheldon and Leonard get invited to a housewarming party at WIL WHEATON's house; while Howard gets an out-of-this-world opportunity! ..More
The Big Bang Theory
S5 | E6 The Rhinitis Revelation 20 min • Expires Tomorrow
S5 | E6 The Big Bang Theory 20 min • Expires January 16
Sheldon craves attention from his visiting mother. ..More
The Big Bang Theory
S5 | E7 The Good Guy Fluctuation 19 min • Expires Tomorrow
S5 | E7 The Big Bang Theory 19 min • Expires January 16
Sheldon tries to spook his friends on Halloween. ..More
The Big Bang Theory
S5 | E8 The Isolation Permutation 20 min • Expires Tomorrow
S5 | E8 The Big Bang Theory 20 min • Expires January 16
Bernadette & Penny shop for wedding dresses...without Amy. ..More
The Big Bang Theory
S5 | E9 The Ornithophobia Diffusion 20 min • Expires Tomorrow
S5 | E9 The Big Bang Theory 20 min • Expires January 16
Sheldon must overcome his fear of birds. ..More
The Big Bang Theory
S5 | E10 The Flaming Spittoon Acquisition 20 min • Expires Tomorrow
S5 | E10 The Big Bang Theory 20 min • Expires January 16
Sheldon becomes jealous when Stuart asks Amy for a date. ..More
The Big Bang Theory
S5 | E11 The Speckerman Recurrance 19 min • Expires Tomorrow
S5 | E11 The Big Bang Theory 19 min • Expires January 16
Leonard comes face-to-face with his high school bully. ..More
The Big Bang Theory
S5 | E12 The Shiny Trinket Maneuver 20 min • Expires Tomorrow
S5 | E12 The Big Bang Theory 20 min • Expires January 16
Sheldon gets in trouble with Amy, and it's up to Penny to teach him how to be a better boyfriend. Howard, meanwhile, must come to grips with Bernadette's dislike of children. ..More
The Big Bang Theory
S5 | E13 The Recombination Hypothesis 20 min • Expires Tomorrow
S5 | E13 The Big Bang Theory 20 min • Expires January 16
Everything might change when Leonard offers Penny a spur of the moment invitation to a romantic dinner for two on the 100th episode of the series. ..More
The Big Bang Theory
S5 | E14 The Beta Test Initiation 20 min • Expires Tomorrow
S5 | E14 The Big Bang Theory 20 min • Expires January 16
Leonard and Penny "beta test" their relationship. ..More
The Big Bang Theory
S5 | E15 The Friendship Contraction 20 min • Expires Tomorrow
S5 | E15 The Big Bang Theory 20 min • Expires January 16
Sheldon's selfish demands force Leonard to reconsider their friendship. Meanwhile, Howard tries to pick his astronaut nickname. NASA astronaut MIKE MASSIMINO guest stars. ..More
The Big Bang Theory
S5 | E16 The Vacation Solution 20 min • Expires Tomorrow
S5 | E16 The Big Bang Theory 20 min • Expires January 16
When Sheldon is forced to take a vacation by the university, he goes to work with Amy in her neurobiology lab. ..More
The Big Bang Theory
S5 | E17 The Rothman Disintegration 20 min • Expires Tomorrow
S5 | E17 The Big Bang Theory 20 min • Expires January 16
When a corner office at the University opens up, Sheldon must compete for it with his office nemesis, Barry Kripke. Meanwhile, Penny receives an unusual gift from Amy. ..More
The Big Bang Theory
S5 | E18 The Werewolf Transformation 20 min • Expires Tomorrow
S5 | E18 The Big Bang Theory 20 min • Expires January 16
A change in Sheldon's routine forces him to re-evaluate his entire life, when his barber is sick. Meanwhile, Howard rethinks his decision to go into space after astronaut training. ..More
The Big Bang Theory
S5 | E19 The Weekend Vortex 19 min • Expires Tomorrow
S5 | E19 The Big Bang Theory 19 min • Expires January 16
Sheldon chooses to participate in a guys-only weekend Star Wars gaming marathon rather than go with Amy to her aunt's birthday party... and gets a lesson from Penny and Amy. ..More
The Big Bang Theory
S5 | E20 The Transporter Malfunction 20 min • Expires Tomorrow
S5 | E20 The Big Bang Theory 20 min • Expires January 16
It's a dream come true for Sheldon when he has a close encounter with his hero, Mr. Spock -- legendary sci-fi icon LEONARD NIMOY. ..More
The Big Bang Theory
S5 | E21 The Hawking Excitation 18 min • Expires Tomorrow
S5 | E21 The Big Bang Theory 18 min • Expires January 16
Sheldon has a chance to meet his hero, STEPHEN HAWKING. ..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.