Amy and Sheldon aren't sure if they should turn in Dr. Pemberton on The Big Bang Theory. "The Plagiarism Schism" is the 21st episode of the show's 12th season.
Koothrappali is worried he won't be taken seriously after publishing a paper on The Big Bang Theory. "The Decision Reverberation" is the 20th episode of the show's 12th season.
Leonard learns the truth about why his mother came to visit on The Big Bang Theory. "The Maternal Conclusion" is the 22nd episode of the show's 12th season.
Bernadette and Howard attempt to leave the kids at home on The Big Bang Theory finale. "The Stockholm Syndrome" is the 24th episode of the show's 12th season.
Sheldon [to Kripke]: Also, I am given to understand that your mother is overweight. Raj: Oh, snap. Sheldon: Now of course, if that is the result of a glandular condition and not sloth and gluttony then I withdraw that comment.
