Seahorse Seashell Party - S10-E2
Continuity mistake: Brian cuts his entire ear off. The top of his ear reappears a few shots later.
Continuity mistake: Toward the end of this episode, Stewie is at home in the living room talking to Rupert about how depressed he is about being alone. All of a sudden he hears his family come back home, so he gets up from the couch and runs to the window leaving Rupert on the couch. As soon as Stewie moves his head away from the window take notice that Rupert is no longer on the couch.
There's Something About Paulie - S2-E16
Continuity mistake: A mob member at Cleveland's deli offers to help Peter get a new car by stealing the used junker he bought and have insurance get him a new one. The new blue car he receives appears to resemble a Volkswagen Beetle when it first appears, but in the second shot the car's body is more Mercedes-like. (00:05:17)
Continuity mistake: Peter, Quagmire, Cleveland and Joe are crawling through the air duct. Joes wheelchair is nowhere in sight yet when they fall to the floor it hits Joe in the head. (00:10:18)
Continuity mistake: When Peter and the family reach the top of Mt Everest, it shows a long shot of them all by themselves. Cut to Lois talking - another family is suddenly sitting there, and the woman says "we beat you by one hour and 11 minutes." (00:14:00)
Continuity mistake: In the episode "FOX-y Lady" (7-10) it was established that Quagmire was 61 years old. In this episode, Quagmire stated to Meg he was bullied in 1986 and a flashback shows that he was a teenager. So how could Quagmire have been bullied in 1986 as a teenager if he should have been in his 30's at this time? (00:12:15)
Yug Ylimaf - S11-E4
Continuity mistake: When Stewie is born whilst time is reverting, Doctor Hartman says "It's a girl... with a penis and no vagina". Then after Brian restored the flow of time and Stewie is actually born, Doctor Hartman instead says "It's a boy". (00:18:25 - 00:19:55)
And Then There Were Fewer - S9-E1
Continuity mistake: When Mayor West panics, Peter shakes him and he falls against a shelf. The plate on the end of the shelf falls off and smashes on the floor. But when Brian points out the gun is there, it is now the middle plate that fell off and the plate on the end of the shelf is intact. (00:15:25)
And Then There Were Fewer - S9-E1
Continuity mistake: Just after Stephanie is killed, there is an outside shot of the manor, where the weather is normal. Just 20 seconds later when they run outside to try and escape, it is suddenly pouring down. (00:10:40)
And Then There Were Fewer - S9-E1
Continuity mistake: There are several differences during the flashbacks and what actually happened. Such as when Muriel is killed Diane appears with everyone else, but in the flashback she appeared moments later. Second, when everyone appears in front of Derek's dead body there are two differences, Tom doesn't say "Dear God!" in the flashback and Diane appears 1 second later in the flashback. Third, Stephanie doesn't say "Did the cork hit me?" when she is shot in the flashback. Fourth, Priscilla isn't wearing a scarf in the flashback even though when it actually happened she was wearing a scarf. Fifth, when Derek says he is going up to the roof he is standing next to Peter and Lois, in the flashback he standing next to Lois and Jillian. Sixth, when Derek leaves the dining room to go to the balcony, no-one is standing next to the door, but in the flashback Diane and Doctor Hartman are standing right next too the door. Seven, when Muriel is killed she is in the middle of a hallway. But in the flashback, she is killed outside Tom Tucker's room.
Continuity mistake: When OJ Simpson first meets Peter for their game of golf, both Peter and OJ have only four irons and a putter in their golf bags; however, when OJ tees off, he does so with a wood.
Continuity mistake: The bullet holes in Lois keep changing place between shots. This also happens during the flashback in the courtroom.
Brian's Got a Brand New Bag - S8-E4
Continuity mistake: Towards the end of the episode, we see Rita's bedroom door opens in. When Brian returns from the store, there's no door at all. When he leaves, the door opens out because he slams it shut.
Continuity mistake: At the end of the episode, Connie kisses Stewie. Her book and Stewie's clothes disappear from the floor when Connie is taken away.
Screams of Silence: The Story of Brenda Q - S10-E3
Continuity mistake: When Brenda arrives at her intervention, she sits down and puts her purse on the floor. It disappears for the rest of the scene.
Stew-Roids - S7-E13
Continuity mistake: When Lois is talking to Meg on her bed she gets up and throws a book and a bottle of pills on the bed that came out of nowhere. The nightstand is out of view but if you look at the earlier scene there's nothing on the stand except a clock and a lamp.
Brian Goes Back to College - S4-E15
Continuity mistake: When Brian arrives at Brown, his bag strap is across his body. When the shot changes, it's just on one shoulder. (00:08:00)
Brian Goes Back to College - S4-E15
Continuity mistake: Louis' hand changes places on the newspaper at the start when talking to Brian. Note its position in relation to the column. (00:02:10)
Continuity mistake: In the first shot of the pool party, Peter's "President" sash is draped from his left shoulder with the visible letters "n" and "t" in reversed positions. In the following shots the sash is draped correctly from Peter's right shoulder.