
Continuity mistake: When Lois bends down to pick up the CD off the floor in Chris' room, the items around the shirt on the floor change between shots. (00:16:20)

Continuity mistake: When Stewie is talking to the army recruiter, there is 2 stacks of paper on the desk. When he signs up, one of the stacks has disappeared. (00:07:10)

Continuity mistake: At the start, Chris is sat next to Peter at the table with a visible gap between him and Meg. When Lois stands up, Chris is not closer to Meg as the gap has disappeared. (00:02:20)

Continuity mistake: When Chris is saying about the Army being awesome, there is nothing green on his plate. When the shot changes, something green has appeared on his plate. (00:01:20)

Continuity mistake: When Meg gets promoted, there is a gap in the books on the shelf. When she stands up, the gap is gone. (00:18:30)

Continuity mistake: When Lois is carrying Stewie down the stairs, the brick patterns in the wall change between the wide shot and the close-ups. (00:14:10)

Continuity mistake: When Stewie keeps saying "mum", he's not stood next to a rug. When the shot changes, a blue rug has appeared next to Stewie. (00:11:40)

Continuity mistake: When Peter says about suing Dr. Hartman, Lois is holding Stewie who is asleep and facing Peter. When the shot changes, Stewie is now looking towards Brian. (00:08:20)

Continuity mistake: When Peter is playing with Stewie's nose, Stewie's arms are by his side, but when the shot changes, he's got his arms in front of him. (00:08:10)

Continuity mistake: When Peter is hiding in the bedroom, the colour of the books by the TV change between shots. Most noticeable is 2 blue books become 1. (00:06:00)

Continuity mistake: When Meg is talking about getting a job and buying a car, Stewie goes from reading a book to reading a newspaper. (00:09:20)

Continuity mistake: When Brian is talking about Superstore USA, he goes from sitting on the carpet to sitting on the rug without moving. (00:09:50)

Continuity mistake: Lois and Brian go outside and celebrate Peter's dad's death, then they come back in and sit down. Behind Lois you see the trash cans when Peter says, "But instead he called me a fat stinking drunk, those were his last words," then it cuts to a closer shot of Peter and Lois, and the trash cans have vanished. (00:12:33 - 00:12:54)

Continuity mistake: When Peter is going for ice cream, his fork simply disappears from his plate. (00:18:40)

Other mistake: One of the ping pong balls that fell off Peter goes through the floor when it hits the ground. (00:00:50)

Revealing mistake: Right after the "Ghost Whisperer" cutaway, while Peter, Chris, and Lois are sitting on the couch, Chris' eyes disappear for a single frame. (00:09:10)

And Then There Were Fewer - S9-E1
Other mistake: When they are chasing Tom around the dining table, they huddle up in a circle. Everyone is looking at Peter talk, and when Doctor Hartman says "Damn, that is awfully risky," if you look at Carl's eyes, they clip outside their eyes to look at Hartman.

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)
Answer: Lacey Chabert was the actress who originally voiced Meg in early episodes. She left of her own accord due to being in school and other acting work; Seth MacFarlane has stated there was no tension with her leaving, but it makes for a handy joke for the show.
Jon Sandys ★