The Discovery Dissipation - S7-E10
Continuity mistake: The Stevenson Award in Sheldon's office reads "Sheldon Cooper, PhD." But, in the "Dennis Kim" episode we are told Sheldon was 14.5 years old when he earned that award - 1.5 years before earning his PhD at age 16, so the award should not show the title of PhD.
The Cooper Extraction - S7-E11
Continuity mistake: When Amy says that Penny never would have met Stan Lee, she draws a thick black line between "Penny" and "Stan Lee" on the board. The camera goes to Penny, and when it comes back to Amy, the line is blue and faint.
The Proton Displacement - S7-E7
Continuity mistake: During the jewelry-making session, when Penny is making a mess, there's a black piece stuck to her left hand. The piece is stuck on different parts of her hand throughout the scene. (00:07:15)
The Deception Verification - S7-E2
Continuity mistake: In the scene where Howard and Raj are comparing the size of their breast area, Bernadette is seen in the background holding a mug with the handle in her right hand. However, when the scene zooms in on her, the handle appears in her left hand.
The Thanksgiving Decoupling - S7-E9
Continuity mistake: When Sheldon and Mike are drunk on the couch after Howard leaves, they are toasting with the beer cans. Sheldon has his in his right hand, but when Bernardette came in, the can is in his left. A little bit later, after he says "she's so tiny", the can moves back to his right hand.
The Locomotive Manipulation - S7-E15
Continuity mistake: At the end of the episode when Lennard asks Sheldon about his train ride, he says that he kissed Amy on the lips, and says that it tasted like the brownies that they had that for dessert. But they were eating a tart of some type, with a shortbread crust. No brownies were on the table.
The Discovery Dissipation - S7-E10
Continuity mistake: In Season 3 Episode 1 Sheldon made a retraction of his paper. But here he says he had only one retraction, when he was a kid. (00:11:36 - 00:13:09)
Suggested correction: Not being able to afford doesn't necessarily mean he doesn't have the money, especially a man like Sheldon. He works with a budget and he sticks to it. In his budget he has a certain amount set aside for rent, anything more than that and he can't afford it alone.
Nonsense. If he was sticking to a "rigid budget" he wouldn't have even thought of lending a hopeless credit risk like Penny a single cent. Instead he throws a huge bankroll at her without even discussing a repayment plan.
Rubbish, I stick to a strict budget but still have the money to lend to close friends. Like Penny is to him.
He might have different budgets for different things. People could get a higher margin because they could be of more use to the scientific mind of Sheldon.