The Big Bang Theory (Episodes Guide)
6.12 – The Egg Salad Equivalency
aired on January 3, 2013
Directed by: Mark Cendrowski | Written by: Steven Molaro, Bill Prady, Steve Holland


When Penny finds out Alex has a crush on Leonard, Sheldon gets himself and the rest of the guys in trouble with Human Resources whilst trying to solve the problem.
6.20 – The Tenure Turbulence
aired on April 4, 2013
Directed by: Mark Cendrowski | Written by: Chuck Lorre, Steve Holland, Jim Reynolds


Leonard, Sheldon, Raj and Kripke battle for tenure at the university.
7.01 – The Hofstadter Insufficiency
aired on September 26, 2013
Directed by: Mark Cendrowski | Written by: Eric Kaplan, Jim Reynolds, Steve Holland


Sheldon and Penny bond over missing Leonard. Howard tries to help Raj get over his breakup with Lucy. Amy and Bernadette take a trip together to a biology convention.
8.02 – The Junior Professor Solution
aired on September 22, 2014
Directed by: Mark Cendrowski | Written by: Jim Reynolds, Maria Ferrari, Tara Hernandez


Sheldon is forced to teach a class as a Junior Professor. Meanwhile, Amy plays both sides when tension arises between Penny and Bernadette.
11.02 – The Retraction Reaction
aired on October 2, 2017
Directed by: Mark Cendrowski | Written by: Dave Goetsch, Eric Kaplan, Anthony Del Broccolo


Leonard angers the University and the Physics Community when he gives an embarrassing radio interview. Bernadette and Amy compare their successes at work.
12.19 – The Inspiration Deprivation
aired on April 18, 2019
Directed by: Mark Cendrowski | Written by: Steve Holland, Anthony Del Broccolo, Tara Hernandez


Contemplating what it would mean to all women if she were to win a Nobel Prize causes Amy to have a meltdown. Koothrappali and Wolowitz try to relive the good old days after Wolowitz buys a scooter that looks like the one he had years ago.