Yes, Sheldon did contradict himself on the phrase "the more the merrier," agreeing with it in S02E02 but disagreeing with it in S03E10, saying "more does not equal merry."
In S02E02, "The Codpiece Topology," when Leonard informed Sheldon that a visitor was arriving, Sheldon responded, "Well then, no problem, I have three controllers, the more the merrier."
During S03E10, "When Sheldon learned that Bernadette would be joining them for dinner in "The Gorilla Experiment," Leonard responded, "The more, the merrier," to which Sheldon countered, "Wait, no, that’s a false equivalency; more does not equal merry; if there were 2,000 people in this apartment right now, would we be celebrating?” “No, we’d be suffocating."
In addition to this, Sheldon rarely contradicts himself, but he has undoubtedly made a few errors throughout the course of the show's run. As mentioned below:
The Stephen Hawking Episode
Sheldon had the chance to present a paper to Stephen Hawking in episode 5 of season 5, "The Hawking Excitation." Sheldon was feeling confident in himself and arrogant about his success as usual, but Hawking quickly made him humble.
The second page of the document contained a mathematical error, as Hawking informed Sheldon. Sheldon rejected the idea that he might have made a mistake, but when he looked through his work, he realized it was true and passed out.
Leslie Helped Sheldon
Sheldon was surprised to find the equation he had been struggling with solved when he awoke. Leonard said he didn’t do it when asked by Sheldon. Leslie Winkle acknowledged that she had solved it and altered his whiteboard.
Sheldon would still be working on the equation if not for her final touches. But because of his friendship with Leslie, Sheldon never showed her the proper gratitude for her assistance. However, given how his personality has been portrayed throughout the season, his behavior is entirely justified.
Caltech’s Physics Bowl
During the first season, the group participates in the Physics Bowl at Caltech. The foursome understood they had what it took to succeed, but Sheldon lacked teamwork skills. He didn't let his team members speak, assuming that he was correct and they were mistaken. Leslie Winkle was added to the team to replace Sheldon after Leonard made the executive decision to remove him.
On the final question, to which Sheldon didn't know the answer, Sheldon's teammate provided the correct response, but Sheldon didn't believe him and protested until it was decided that he was mistaken. Leonard's team ultimately came out on top.
The Field Cricket Episode
The guys discover a cricket in their apartment in "The Jiminy Conjecture," and each of them asserts that it is a different species. Before catching it and bringing it to an entomologist at Caltech, they also went by the names Toby and Jiminy.
The professor confirmed that the cricket was a field cricket after a brief period of glancing at it; this was contrary to Sheldon's hypothesis. Sheldon acknowledged his defeat and praised Howard for his presumption.
Sheldon Miscalculated his Research
In "The Romance Resonance," Sheldon is amazed that he was able to "synthesize a new island of stable, super-heavy elements." He explained to Leonard and Amy that he accomplished a tremendous feat that no one else could have done.
But as he started to be acknowledged for his discoveries, he realized he had made a crucial mistake that would invalidate his research. Instead of reading the work as square centimeters, he did so as square meters. This would indicate that his math was incorrect, and thus the results were inaccurate.
The Toast’s History
Sheldon has a quirky personality, which Leonard tried to show Priya before they started dating in order to help her get used to him. In one scene, Sheldon asserts that the Romans dipping bread into wine is the origin of the phrase "make a toast."
Fans quickly clarified that the phrase was created before the Roman Empire, though. Sheldon also asserted that blood pudding and haggis were nearly identical, despite the fact that they are two entirely different dishes. But rather than being caught in the show, this one error was brought up by viewers.
FAQs
Q. Did Sheldon Cooper ever contradict himself?
A. The phrase "the more the merrier" is one that Sheldon has contradicted himself on, agreeing with it in S02E02 but disagreeing with it in S03E10, saying "more does not equal merry."
Q. What is the net worth of Jim Parsons?
A. The estimated net worth of Jim Parsons is $160 million, as of January 2023.
Q. How many seasons does The Big Bang Theory have?
A. The Big Bang Theory ran for a total of twelve seasons, from September 2007 to May 2019.
