The Big Bang Theory
Series 11 Episode 21

Sheldon isn't pleased by the comic book shop's newfound popularity. Raj attempts to take the credit for Penny's astronomical discovery. Howard and Bernadette try to arrange a date night.

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