Continuity mistake: When Stewie pushes Brian down the stairs, in the background at the moment he pushes him that the stairs are visible behind Stewie as well.
Blue Harvest - S6-E1
Continuity mistake: After Vader (Stewie) kills Obi-Wan, Luke yells out and then the shot shows storm troopers firing at him with Vader in the background. Vader's lightsaber is blue, when it should be red. It is red in the previous and next shots. (00:34:00)
He's Too Sexy for His Fat - S2-E17
Continuity mistake: Just before the pest control team leaves for the Griffins', we see the black team member holding a shotgun in his hand. After showing Logan in shot, it returns to the black member and he's now holding what looks to be an MP5 machine gun. In the following shot as he starts to slide down the pole, the gun is once again a shotgun.
The Father, The Son, and The Holy Fonz - S4-E18
Continuity mistake: When Francis arrives, he changes from standing on the threshold to standing inside the house, even though he could not have moved between shots. (00:01:30)
And Then There Were Fewer - S9-E1
Continuity mistake: Derek and Jillian are standing beside Consuela who is holding a tray with 5 glasses of wine. A split second later, when Derek gets 2 off the tray, the tray is left empty.
Continuity mistake: The interior of the Griffins' bathroom changes color (from yellow to blue), when Chris first talks to his pimple.
And Then There Were Fewer - S9-E1
Continuity mistake: When Derek Wilcox is killed and on the ground, he is on his front with his head turned. He got hit above his right eye and blood is coming from underneath him, but after everyone else arrives outside, he is on his back with the wound above his left eye and blood is all over his face.
I Never Met the Dead Man - S1-E2
Continuity mistake: When we first see the merry-go-round that Peter and William Shatner ride on, there are four bikes on it, but in the next shot, there are three bikes. (00:19:15)
Continuity mistake: During the scene where Joe is putting his trophies on the shelf, the size of the shelf in relation to the trophies changes. (00:07:15)
Continuity mistake: When Peter and Lois kiss and make up at the end, Tricia and the press run up to them. As they arrive there is no-one behind Tricia, but in the next shot there are three people behind her. (00:21:15)
Brian Wallows and Peter's Swallows - S3-E17
Continuity mistake: When the family is eating dinner and discussing Brian's community service, Stewie's meal goes from breaded chicken to meatloaf in between shots.
From Method to Madness - S3-E18
Continuity mistake: When we first see the sign outside the Quahog institute of performing arts, it has a cartoon take on the comedy and tragedy masks in the corners. In the left hand corner is a black mask with big ears and a smile and on the right is a white mask with a frown. Later on, the black mask has the frown and the white mask has the big ears and smile and the 3rd time you see the sign it has changed back again.
To Live and Die in Dixie - S3-E12
Continuity mistake: When Peter and Brian are escaping from the locals in their car, they go over a ridge. They freeze in midair and a voice says "those Griffin boys..." and the screen goes black. Then, in the next shot, the whole landscape is different. Even though the angle of the shot is different, that doesn't account for the disappearance of Chris and Sam or the colour-change of the sky. (00:14:40)
Continuity mistake: After Conway Twitty finishes his song, the scene cuts back to Perter and his family at the kitchen table. Take notice that Lois is sitting next to the back door, and Brian is sitting next to the kitchen sink and window. Keep an eye on that kitchen sink, window and door, because it will be replaced by a yellow wall with the telephone now being closer to Lois. Later as Lois, Brian and Peter are discussing OJ Simpson, the sink, widow and door return.
Continuity mistake: When we first see the English family at the airport, the girl in red is carrying a blue pack, but in the next shot, she is carrying a doll. (00:05:30)
If I'm Dyin' I'm Lyin' - S2-E9
Continuity mistake: In the scene that parodies "Good Times" and the "JJ" character says the infamous line "Dy-NO-Mite!" as he comes home, his mother has a coffee mug but his father doesn't. In the next shot, they both have mugs.
Ready, Willing, and Disabled - S3-E15
Continuity mistake: The word 'Coach' on Peter's jumper changes in thickness multiple times just as Joe is starting the final race. (00:12:45)
Peterotica - S4-E24
Continuity mistake: When Peter is reading Lois his erotica in bed, the size of his paper changes just after he says "his really cool spaceship".
The Kiss Seen Around the World - S3-E8
Continuity mistake: On this episode, Neil's father says that his and Miriel's first kiss was in high school. But, later in "Stuck Together, Torn Apart", Miriel states that Neil made a dating video to meet her. In the video he is a grown man.
Chitty Chitty Death Bang - S1-E3
Continuity mistake: When Stewie comes in when the Griffin family is talking about Cheesy Charlies, his head and body are way out of proportion. He is right next to the rug where the family is sitting, yet he is about twice his usual size. (00:01:50)
