Episode Guide

The Big Bang Theory is now in its ninth season on CBS. The Season 9 premiere aired Monday, September 21, 2015. The ninth season will contain twenty-four episodes and the season finale will air on Thursday, May 12, 2016.

Upcoming Episode Schedule

The Big Bang Theory has so far produced 207 episodes since its premiere in the 2007/08 season. The show was renewed by CBS in March 2014 for another three years, taking it through to its tenth season in 2016/17.

Next Episode

'The Line Substitution Solution' - Season 9, Episode 23
Airs Thursday, May 5 at 20:00 on CBS.

Sheldon hires Stuart to spend the day with Amy when he'd rather go to a movie screening. Also, Leonard's mother, Beverly, comes to town and Penny struggles to make a connection with her.

Previous Episode

'The Fermentation Bifurcation' - Season 9, Episode 22
Aired Thursday, April 28 at 20:00 on CBS.

The gang goes to a wine bar and runs into Penny's old boyfriend, Zack. Also, Bernadette gets stuck spending the evening with Sheldon when she can't go wine tasting with the group, and things don't go as planned when Koothrappali introduces his new girlfriend, Claire.

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
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
702 The Deception Verification September 26, 2013 6.1
315 The Large Hadron Collision February 8, 2010 6