The Big Bang Theory
Series 11 Episode 13

Sheldon needs some 'alone time' to work, so Amy and Leonard bond during a series of science experiments. Bert replaces Howard in his band, while Penny gives Sheldon unexpected scientific inspiration.

The Proposal Proposal: Amy gives Sheldon an answer to his proposal. Howard and Bernadette get unexpected news.

First shown: Thu 12 Oct 2017 | 20 mins

The Retraction Reaction: Leonard angers the university with an embarrassing interview. Amy and Bernadette bond.

First shown: Thu 19 Oct 2017 | 20 mins

The Relaxation Integration: As Sheldon stresses about picking a wedding date, Amy urges him to find his laid-back side

First shown: Thu 26 Oct 2017 | 19 mins

The Explosion Implosion: Howard and Sheldon bond when they drive into the desert to shoot off a model rocket

First shown: Thu 2 Nov 2017 | 20 mins

The Collaboration Contamination: Penny and Leonard learn new ways to manage Sheldon's behaviour from an unlikely source

First shown: Thu 9 Nov 2017 | 18 mins

The Proton Regeneration: Sheldon and Wil Wheaton compete to play Professor Proton when his TV series gets a reboot

First shown: Thu 16 Nov 2017 | 20 mins

The Geology Methodology: Sheldon and Bert collaborate on some research, although Sheldon feels embarrassed about it

First shown: Thu 23 Nov 2017 | 19 mins

The Tesla Recoil: Leonard and Howard learn that Sheldon went to work with the military behind their backs

First shown: Thu 30 Nov 2017 | 18 mins

The Bitcoin Entanglement: Sheldon seeks revenge when the guys cut him out of a potentially valuable investment

First shown: Thu 7 Dec 2017 | 18 mins

The Confidence Erosion: Sheldon and Amy try to eliminate stress from their wedding plans by applying mathematics

First shown: Thu 14 Dec 2017 | 21 mins