Advanced Gay - S3-E6
Continuity mistake: We know from this episode that Pierce's father is alive, but at the beginning of episode 1-7 Pierce's mother is on the other end of the phone and speaks about seeing his father's "ghost," as if his father has passed away. (00:02:00)
Suggested correction: Pierce explains in a later episode that his mother liked to believe that his father was dead.
That's not a proper connection. Her "liking to believe" his father was dead is not her literally thinking he's dead- she just wishes he was dead. So she should know enough to know she couldn't have been seeing his ghost. It's a mistake because they decided to write Pierce's father into the show on a later date.
Foosball and Nocturnal Vigilantism - S3-E9
Character mistake: In the bonus clip where we see Leonard's online video about frozen food, the first thing he says is, "This is November 29th". However, if you look under the video, you can see the video was uploaded on Nov 26, 2011, which is three days earlier.
Digital Exploration of Interior Design - S3-E13
Continuity mistake: Britta sets down her copy of 1984 and her pen, which is angled with the end pointing away from the book. Two cuts later, the pen is now parallel with the book, without Britta ever touching it.
Audio problem: Jeff summons Abed and Troy to meet together, saying "this has to stop," to which Abed replies "tell him." But the audio was cut abruptly at the start of his sentence and we can only hear "ell him."
Origins of Vampire Mythology - S3-E15
Continuity mistake: The way Britta holds the banana from the DVD cabinet changes between shots.
Virtual Systems Analysis - S3-E16
Continuity mistake: When Annie is talking to Abed in the study room, next to Troy and Britta, the Dean's "Puttin' On The Ritz" cane is leaning against some books, towards the right. When the Dean comes back in to claim it, it is leaning towards the left.
Course Listing Unavailable - S3-E18
Continuity mistake: The stars Britta puts on change during various shots. She wouldn't have had time to readjust them when off camera either, and at the end when she tried to remove them, they're stuck on pretty good.
Course Listing Unavailable - S3-E18
Continuity mistake: As Jeff makes his way to the podium to say a few words about Star-Burns, Pierce is sitting next to him with his hands on a table. Light applause breaks out and in the next shot, Pierce's hands are raised up near his face as he's about to clap.
Course Listing Unavailable - S3-E18
Continuity mistake: When Jeff begins crying with his head down on his text book, Britta attempts to comfort him. She touches his hand and he swats it away, but in the next shot his hand is gripping the pages of his textbook.
The First Chang Dynasty - S3-E21
Continuity mistake: Troy and Britta are spying on the school behind a hedge through binoculars. When Annie pops up, Troy sets them down. As the camera cuts between Britta and Annie to Troy, the binoculars disappear and reappear.
Introduction to Finality - S3-E22
Other mistake: During Leonard's "Let's Potato Chips" YouTube video during the ending credits, you can see the video reaches the end of the load/play bar (watch the circle), yet the video continues for several seconds. Once the circle reaches the end of the load/play bar, the video is over and won't continue.
Introduction to Finality - S3-E22
Continuity mistake: After Alan tells Jeff that he turned him in to the state bar, he gets up and Jeff thanks him. Two quick shots later he is impossibly close to the door.
Continuity mistake: Britta points out that Pierce keeps his dad's bow tie on his night stand. A few moments later, after Jeff finishes opening up and walks away, the bow tie on the night stand has disappeared.
Conventions of Space and Time - S4-E3
Continuity mistake: Annie splashes Jeff in the face with a drink and she asks for two more, with Jeff still having water dripping on his face. He shouts "enough!" and suddenly his face is much drier in the next shot.
Alternative History of the German Invasion - S4-E4
Continuity mistake: During the podcast scene at the credits, Karl is gripping a trident with both hands. After asking if it was an apology, the camera cuts to Abed and he is now holding it with only one hand. (00:20:50)
Alternative History of the German Invasion - S4-E4
Continuity mistake: When Malcolm McDowell is writing on the board early in the episode, he draws a line under the word "victors". In the next shot of the board, the line has moved, and the gap between the V and I is larger.
Alternative History of the German Invasion - S4-E4
Continuity mistake: Reinhold and his two friends are walking out of the administration building around the study group. Reinhold makes it out of the door with his two buddies close behind. In the next shot, they have all suddenly exited the room.
Advanced Documentary Filmmaking - S4-E6
Continuity mistake: When the group is making posters for the MacGuffin Institute meeting, Annie holds up a poster saying "Welcome Archie" to show off name brand glitter but the character of Archie isn't introduced until the next episode (in which the banner shows up again). (00:03:11)
Suggested correction: This isn't a mistake. The episodes were simply aired out of order than the order they were produced. "Economics of Marine Biology" (production code 406), the following episode, was filmed before "Advanced Documentary Filmmaking" (production code 408).
Advanced Documentary Filmmaking - S4-E6
Continuity mistake: Abed is making a documentary, and we see the fact that there are two cameras throughout the episode, so they are definitely acknowledged. However, in the scene at the trout fisherman's house, there is someone filming behind Annie and Troy and towards Annie and Troy. The problem being that whenever it shows Annie and Troy in front, there is no cameraman behind them, but when it cuts to behind them again there is somebody there filming.
Economics of Marine Biology - S4-E7
Audio problem: After Abed's fraternity runs loose, making Archie spill soda on his shoes, he expresses his dismay loudly, with commotion of the frat still being heard. Suddenly there is a very noticeable and abrupt audio cut right when Annie says her next line. (00:10:45)
