The Big Bang Theory


Series 11 Episode 11 The Celebration Reverberation

3.0 5 x
Sheldon and Howard plan birthday celebrations for Amy and Halley, respectively. Leonard receives a Christmas letter from his brother that makes him feel anxious about his own lack of accomplishments.
Episodes 2017

Series 11 Episode 10 The Confidence Erosion

Expired 3.0 9 x
Sheldon and Amy try to eliminate stress from the planning of their wedding by applying mathematics to the process. Raj falls out with Howard after realising his best friend is hurting his confidence.

Series 11 Episode 9 The Bitcoin Entanglement

Expired 4.0 9 x
Sheldon tries to teach the guys a lesson after they cut him out of a potentially valuable investment. Meanwhile, a seven-year-old video reveals a secret about Leonard and Penny's relationship.

Series 11 Episode 8 The Tesla Recoil

Expired 4.0 17 x
Leonard and Howard are furious when they learn that Sheldon went to work with the military behind their backs. Bernadette suspects that Ruchi is trying to steal her job and asks Raj to investigate.

Series 11 Episode 7 The Geology Methodology

Expired 4.0 10 x
Sheldon and Bert collaborate on some research, although Sheldon's embarrassed to be associated with the study of geology. Penny and Bernadette coach Raj on how to navigate his relationship with Ruchi.

Series 11 Episode 6 The Proton Regeneration

Expired 3.0 13 x
Sheldon goes head-to-head with Wil Wheaton as they compete for the role of the new Professor Proton when the scientist's old TV show gets a reboot. Penny looks after Halley for Howard and Bernadette.

Series 11 Episode 5 The Collaboration Contamination

Expired 3.0 22 x
Sheldon and Raj ask Bernadette for advice about their jealousy when Amy and Howard collaborate on a new project. Penny and Leonard learn new ways to manage Sheldon's behaviour from an unlikely source.

Series 11 Episode 4 The Explosion Implosion

Expired 3.0 16 x
Howard and Sheldon bond when they drive into the desert to shoot off a model rocket. And when Leonard's mother Beverly finds a new best friend in Penny, it rubs Leonard up the wrong way.

Series 11 Episode 3 The Relaxation Integration

Expired 4.0 22 x
As Sheldon stresses out about picking a wedding date, Amy tries to convince him that he has a more laid-back side. Raj and Stuart compete to win the heart of Bernadette's new colleague Ruchi.

Series 11 Episode 2 The Retraction Reaction

Expired 4.0 17 x
Leonard angers the university - and the entire physics community - when he gives an embarrassing interview. Amy and Bernadette bond over having to hide their success from Sheldon and Howard.