Available Episodes

The Big Bang Theory
S3 | E21 The Plimpton Stimulation 20 min Expires today
S3 | E21 The Big Bang Theory 20 min Expires March 27
Sheldon hosts a visiting female physicist but her intelligence seems matched by her libido. ..More
The Big Bang Theory
S3 | E22 The Staircase Implementation 19 min Expires today
S3 | E22 The Big Bang Theory 19 min Expires March 27
A squabble over the thermostat setting leads to Leonard going over to Penny's and recounting for her the story of how he met and moved in with Sheldon. ..More
The Big Bang Theory
S3 | E23 The Lunar Excitation 19 min Expires today
S3 | E23 The Big Bang Theory 19 min Expires March 27
Howard and Raj try to find the perfect match for Sheldon by setting him up on an Internet dating site. Seeing her new boyfriend interact with the gang makes it clear to Penny that she can't go back to dating dumb jocks after dating Leonard. ..More
The Big Bang Theory
S4 | E1 The Robotic Manipulation 20 min Expires today
S4 | E1 The Big Bang Theory 20 min Expires March 27
Howard uses a robotic arm for his own pleasure, and Sheldon goes on a date with Amy Farrah Fowler, his first date ever, and Penny finds herself accompanying them. ..More
The Big Bang Theory
S4 | E3 The Zazzy Substitution 20 min Expires today
S4 | E3 The Big Bang Theory 20 min Expires March 27
When Sheldon breaks up with Amy Farrah Fowler, the guys worry when he starts replacing her with cats. ..More
The Big Bang Theory
S4 | E4 The Hot Troll Deviation 19 min Expires today
S4 | E4 The Big Bang Theory 19 min Expires March 27
Wolowitz is embarrassed when a secret of his is revealed, and Sheldon and Raj battle at work. ..More
The Big Bang Theory
S4 | E5 The Desperation Emanation 20 min Expires Tomorrow
S4 | E5 The Big Bang Theory 20 min Expires March 28
Sheldon meets Amy Farrah Fowler's mother and comes to the realization he no longer wants to see Amy; and Leonard realizes everyone is in a relationship except for him. ..More
The Big Bang Theory
S4 | E6 The Irish Pub Formulation 20 min Expires Tomorrow
S4 | E6 The Big Bang Theory 20 min Expires March 28
When Raj's sister has a one-day layover, he forbids the others from hooking up with her unaware she and Leonard already did long ago. ..More
The Big Bang Theory
S4 | E9 The Boyfriend Complexity 20 min Expires Tomorrow
S4 | E9 The Big Bang Theory 20 min Expires March 28
Penny asks Leonard to lie to her visiting father, while Howard, Raj and Bernadette spend all night looking through a telescope. ..More
The Big Bang Theory
S4 | E11 The Justice League Recombination 19 min Expires Tomorrow
S4 | E11 The Big Bang Theory 19 min Expires March 28
The guys get Zack and Penny to join their Justice League costume for a New Year's Eve bash at the comic book store. ..More
The Big Bang Theory
S4 | E13 The Love Car Displacement 20 min Expires Tomorrow
S4 | E13 The Big Bang Theory 20 min Expires March 28
Howard is jealous when Bernadette runs into her old boyfriend at a science event they're attending. ..More
The Big Bang Theory
S4 | E14 The Thespian Catalyst 20 min Expires Tomorrow
S4 | E14 The Big Bang Theory 20 min Expires March 28
Sheldon wants acting lessons from Penny, hoping they will make him a better teacher. ..More
The Big Bang Theory
S4 | E16 The Cohabitation Formulation 20 min Expires Tomorrow
S4 | E16 The Big Bang Theory 20 min Expires March 28
Howard contemplates a serious decision in his relationship with Bernadette; and Leonard and Raj's sister start seeing each other again. ..More
The Big Bang Theory
S4 | E18 The Prestidigitation Approximation 20 min Expires in 2 days
S4 | E18 The Big Bang Theory 20 min Expires March 29
Leonard has a tough choice to make when Priya asks him to stop spending time with Penny, forcing him to choose between the two women; and Howard keeps pestering Sheldon with a magic trick. ..More
The Big Bang Theory
S4 | E23 The Engagement Reaction 19 min Expires in 6 days
S4 | E23 The Big Bang Theory 19 min Expires April 2
Mrs. Wolowitz ends up in the hospital after Howard tells her he's marrying Bernadette. While there, Leonard stresses over Penny and Priya warming up to one another. ..More