Continuity: In the episode where Brian and Lois get married, Lois confronts Brian after cheating with Peter back at the house. Stewie is playing with a SIMON SAYS game. Look at the SIMON SAYS when he is playing it (up close), after he is done (the close up shot ends), look at the colors again on the SIMON SAYS, they change.

Other: In the very new episode where Lois stops breastfeeding Stewie. When Stewie sneaks into his parents' room and attaches the breastfeeding pump to Lois, he places the cups too high on her chest for them to be on her nipples. You can see this, especially after he removes the cups.

Factual error: In some episodes, the word 'fictitious' in the credits disclaimer is spelled 'ficticious'.

Continuity: Series 6, episode 12: When we first see the English guy in his car, his crates of goods are stacked askew in the back seat. After Peter's crew shoot the car several times and the car is half-wrecked, the boxes are suddenly neatly packed into the seats. Moments later, we see the boxes piled randomly again. This change happens a couple more times before the scene is over.

Continuity: Series 6, episode 12: The English guy's car is full of crates when we first see it and when his roof is blown off but after Peter and a crewman have boarded, there are suddenly barrels in the car too.

Audio problem: In the episode when Bryan goes on The Bachelorette, when Quagmire and Brooke are in the hot tub, Brooke passes out after drinking the champagne that Quagmire put a drug in. You hear the sound of her hitting the ground a moment early, before you see it.

Continuity: In the episode when Peter finds out that he is retarded, in the scene where they are about to start shooting at each other, when Peter says, "Nobody fire at Lois. She's scared.", look over his shoulder. In the picture, Stewie is facing left. Later, when they're shooting at each other, Stewie is facing right.

Continuity: Brian's newspaper's name changes from "Daily Informant" to "Daily Tim...". The newspaper also turns upside down between the two shots.

Continuity: When Peter is testifying in court, the microphone on the witness stand disappears in the shots from the judge's point of view.

Continuity: Stewie tries to get his mind control device back from the kitchen. The cupboard door is open when he falls. In the very next shot, Lois turns the light on in the kitchen, and we see the door has closed without anyone touching it. It is open again after that.

Continuity: When Peter says he's gonna buy his family the biggest meal they've ever had, Stewie's eyes are drastically bigger than usual.

Continuity: When Lois, Meg, Chris and Stewie first enter the courtroom there is a brown-shirted man sitting next to Quagmire. In the next shot, there is a pink-shirted man there.

Continuity: In the first shot of the flashback showing the family watching "Philadelphia," Peter's eyes are about twice as big as they normally are. They're back to normal in the next shot.

Continuity: The welfare cheque that Lois gets from the postal worker is addressed: 'Peter Griffin, 72 Spooner St, Quahog, RI' but the Griffins live at 31 Spooner St. every other time their address is mentioned.

Continuity: When we first see the two commentators in the box, the blue suited one doesn't have a mug, but in the next shot, there is a mug next to his microphone.

Deliberate "mistake": When Stewie demands his device, he says, "Like a box of active grenades," and she gives it back. The pins weren't pulled, yet he runs and it explodes.

Continuity: When Meg is looking through her magazine in one shot there are just some adverts, but in the next shot there is a full page picture of someone.

Continuity: During the breakfast scene when Peter is lying on the table, the food on the plates changes positions between shots.

Continuity: When Stewie is acting like a ninja to get his gun back it is in a cupboard with 3 shelves. Yet when the gun is lifting him up there are only two shelves.

Continuity: The seating arrangement of the students preparing to throw paper wads at Meg during the Wonder Years parody changes depending on the camera angle.