Season 8, Episode 2 - The Junior Professor Solution
Aired September 22, 2014
After the university finds a way for Sheldon to change his field of research, he is promoted to a Junior Professor and must teach a class. When nobody signs up for Sheldon's class, Howard surprisingly enlists. Meanwhile, Amy plays Penny and Bernadette against each other as tensions rise over Penny's new job at Bernadette's company.