Mystery of the Urinal Deuce - S10-E9
Corrected entry: When Cartman is doing his presentation on the 9/11 attacks, he says that Kyle got 91 on a spelling test 12 days after 9/11 - but September 23rd was a Sunday.
Corrected entry: When Satan announces his party, he says that you have to have a wristband and a costume to get in. But when Biggy Smalls shows up at the party, he doesn't have a costume on, even though the party was the same night he appeared in Butters' bathroom.
Correction: Originally, Satan did not allow anyone without a wristband or costume into the party, but by the end of the episode, Satan had learned his lesson, realising that the party was more for the people and not for him and then granted everyone access to the party regardless of whether or not they had a wristband or costume. By the time Butters and Biggie Smalls arrived at the party, Satan had already opened the doors to everyone, so they would have been allowed in anyway.
Make Love, Not Warcraft - S10-E8
Corrected entry: In the beginning, as Stan looks back to his computer after calling Randy "R-tard", the name of his character (seen on the upper-left hand corner of the screen) is 'Staniscool". But when the men from Blizzard come to give the Sword of a Thousand Truths to Stan, they refer to Stan's character as "Loves2spooge".
Correction: One can have multiple characters with a single account.
Corrected entry: In the first four episodes, Stan's house has a purple wall and a yellow carpet. Then in "An Elephant Makes Love to a Pig" it has a purple wall and a brown carpet, which it continues to have for the rest of the seasons. But here it goes back to having a purple wall and a yellow carpet.
Correction: Many people, like Stan's parents, have bought a new carpet and changed it again at a later date.
Correction: Cartman is known for making mistakes. Also, bear in mind that he likes to rip on Kyle for being Jewish and what he's telling the class are all LIES.