Episode Guide

The Big Bang Theory is now in its twelfth and final season on CBS. The season premiered with a special broadcast on Monday, September 24, 2018. The show moved back to its regular Thursday night time period on September 27.

On August 22, 2018, CBS and Warner Bros. announced that The Big Bang Theory would be ending with its twelfth season.

Next Episode

'The Imitation Perturbation' - Season 12, Episode 6
Airs Thursday, October 25 at 8:00 on CBS.

When Wolowitz dresses up as Sheldon for Halloween, Sheldon seeks retaliation at Leonard and Penny's Halloween party. Also, Leonard is shocked that Penny doesn't remember their first kiss.

Previous Episode

'The Planetarium Collision' - Season 12, Episode 5
Aired Thursday, October 18 at 8:00 on CBS.

When Amy doesn’t have time to work on super-asymmetry, Sheldon goes to great lengths to ensure she’s available to work with him even it if means accidentally sabotaging her career in the process. Also, Koothrappali doesn’t want Wolowitz to join him in hosting a show at the planetarium.

Most Watched Episodes (U.S.)

Episode Air Date Viewers (U.S.)
702 The Deception Verification September 26, 2013 20.44 million
713 The Occupation Recalibration January 9, 2014 20.35 million
613 The Bakersfield Expedition January 10, 2013 20 million
612 The Egg Salad Equivalency January 3, 2013 19.25 million
712 The Hesitation Ramification January 2, 2014 19.2 million

Highest Rated Episodes (U.S.)

Episode Air Date Adults 18-49 Rating
916 The Positive Negative Reaction February 18, 2016 10.2
924 The Convergence Convergence May 12, 2016 9.8
613 The Bakersfield Expedition January 10, 2013 6.4
615 The Spoiler Alert Segmentation February 7, 2013 6.2
612 The Egg Salad Equivalency January 3, 2013 6.1