Ocean's Three and a Half - S7-E7
Continuity mistake: Bonnie gives birth to Susie. After she is born, she's completely bald. In the next scene, Bonnie is at Peters' holding her and she has a full head of hair, complete with a bow.
Continuity mistake: When Brian stops at the Marriott, he orders a Jack on the rocks. As he is ordering it, there is a woman in the background with a martini, then when the camera cuts to behind the counter when Brian receives the Jack on the rocks, the same woman has red wine instead of a martini.
I Am Peter, Hear Me Roar - S2-E8
Revealing mistake: When Brian says "Well face it Peter, your attitude towards women isn't exactly enlightened", Brian's dog tag is the same color as his fur. It also stays still, even while Brian is moving his head. (00:11:10)
And Then There Were Fewer - S9-E1
Continuity mistake: When the guests walk through the secret passage, the order of the guests change between shots. First, it's Peter, then Chris, then Carl, then Doctor Hartman, then Seamus, then Quagmire, then Lois. But in the shot of the passage, the order is Peter, then Chris, then Carl, then Lois, then Consuela, then Doctor Hartman. Then when they reach the secret room, the order is Peter, then Chris, then Carl, then Lois, then Bonnie, then Quagmire, then Derek, then Jillian. (00:20:00)
And Then There Were Fewer - S9-E1
Continuity mistake: As soon as the secret passage opens, the book that caused it to open disappears off the ground almost instantly. (00:19:25)
And Then There Were Fewer - S9-E1
Continuity mistake: Peter knocks out Joe during the search in the hallway. Yet when everyone is fighting about the motives, there is a wide shot of the fight but Joe can be seen fighting behind a couch with Doctor Hartman and Derek. He can't have regained consciousness, because he doesn't regain consciousness until later in the episode. (00:19:20)
And Then There Were Fewer - S9-E1
Continuity mistake: When Carl mentions Labyrinth to Tom Tucker and Diane Simmons, Meg can be seen at the other side of the table sitting in front of Joe. But when we next see Meg a few moments later, Doctor Hartman is now sitting where Joe was. (00:07:25)
Yug Ylimaf - S11-E4
Other mistake: Everything goes backwards in time and goes that far back that Meg (who is voiced by Mila Kunis) goes back to being voiced by Lacey Chabert (who voiced Meg in season 1). However, when Lacey Chabert does her line to Stewie being in the Griffin house for the first time, it goes back to Mila Kunis when Stewie is "reborn". However, if everything was going backwards and Brian fixed everything to make it goes forwards again, then it still should have been Lacey Chabert voicing Meg, not Mila Kunis. (00:16:30 - 00:19:35)
Revealing mistake: At Warsaw Temple, when Mort says "my bargain hunting Aunt Flo", production initials appear next to Brian's tail.
Continuity mistake: On the tour bus, in one shot we see Meg wearing her outfit that she wore when she had her make-over. Then about 10 seconds later you see her in a different outfit altogether.
Continuity mistake: In the scene when Peter tries to get the bullfrog out the window there is a dartboard but when he walks in it wasn't there.
Continuity mistake: When Mort runs into Stewie's room, thinking it's the bathroom, there is a sign on the door that reads "Stewie's Room - Keep Out Brian." But a few moments later when Brian enters the room looking for Mort, the sign has disappeared.
Barely Legal - S5-E8
Audio problem: Just after Peter graduates from the Police Academy, he goes home to Lois and draws his gun in the kitchen, which gets Lois very excited. Every time Peter fires his revolver, you'll hear a soft, but distinctive clink briefly after each shot. This clink comes from shell casings hitting the floor, which revolvers make impossible. Revolvers are designed to eject expended shell casings only while its user is reloading, not after each shot is fired. Only semiautomatic firearms immediately eject expended cartridges immediately after having been fired. Unless I'm mistaken, the entire gunshot sound originally came from a 9mm semiautomatic pistol.
There's Something About Paulie - S2-E16
Continuity mistake: When Meg is first seen performing 'Death of a Salesman' she changes position between shots. (00:12:35)
Ocean's Three and a Half - S7-E7
Continuity mistake: As Joe is waiting on Peter, Quagmire and Cleveland at the bar, take notice that he is holding a tray with two bottles of beer on it. One bottle is sitting behind the other in the close up shot of Joe. However when the shot pans out, you see that the bottles are side by side.
You May Now Kiss The...Uh...Guy Who Receives - S4-E25
Continuity mistake: When Peter drives his car in the field it is perfectly visible, but in the next couple of shots the car's gone, and so are the tire tracks.
And Then There Were Fewer - S9-E1
Continuity mistake: At the end when everyone is packing their bags and leaving, Jillian is sitting on a bench upset and Bonnie's hand is on her shoulder because Derek was killed. Her neck collar is missing, and her shirt strap is on the right side instead of the left side.
Ready, Willing, and Disabled - S3-E15
Continuity mistake: Right after Lois is telling Peter that he should go to Joe's house, you see a plate and a coffee mug. But right after the angel spirit holds the gun up to Peter's head, and he is walking away from the table, the plate and mug are gone.
Continuity mistake: The age difference between Chris, Meg and Stewie keeps changing throughout the series. At the beginning of the series, Chris is 13, Meg is 15 and Stewie is 1 (he is after S1 E3 Chitty Chitty Death Bang). In series 4, Chris then goes to high school so he must be 14 by that time. It isn't referenced that Meg has aged between series 1 and series 5 until S5 E10 Peter's Two Dads where she turns 17, so she must have turned 16 during the past five seasons. Despite Meg having aged two years throughout the series, Chris remains having only aged one year since S4 (Age 14 referenced in S9 E13 Trading Places). Then in S10 E10 Meg & Quagmire, Meg then turns 18, and still Chris hasn't aged. Also, Stewie remains one year old after all of Chris and Meg's birthdays. If it were consistent, Meg would be now 18, Chris would now be 16 (not 14) and Stewie would now be 4 (not 1).
Continuity mistake: Just as Peter says "He-e-ey, don't take no for an answer Chris", the picture on the wall changes between shots. (00:06:35)
