Stu & Stewie's Excellent Adventure - S4-E30
Continuity mistake: At the end of the previous episode, Stewie gets on a cable car and sits next to older Stewie and they are facing out of the car. However, at the start of this episode, the seat they are sitting on is facing forwards.
Continuity mistake: During the chicken fight, when the cruise ship crashes into the airport, the man directing the planes disappears a split second before he gets run over. (00:05:50)
Continuity mistake: When Stewie is playing golf at the top of the stairs before attacking Brian, the layout of the upstairs floor changes quite radically between shots. First Stewie is playing golf with the stairway behind him. Then when Brian puts on the disguise and walks past, there's suddenly a wall behind Stewie. Brian walks off to the left and Stewie begins to chase him that way, but in the next shot Stewie is chasing Brian off to the right. In that same shot you can see that Stewie is running away from the stairs, but in the next shot, without changing direction, he pushes Brian down the stairs, which mysteriously have appeared in front of him.
Continuity mistake: During the scene where the Griffins have Tom Brady over for dinner, when we first see the establishing shot of everyone at the table, Chris is sitting with an empty chair between him and Tom. However, when he asks if he can call him Tom along with Lois and Meg, he is sitting right next to Tom, with no empty chair between the two.
Factual error: Quagmire spikes Brooks drink. She takes a drink and immediately passes out. The pill didn't even dissolve let alone get in her system long enough for her to pass out.
Petergeist - S4-E26
Continuity mistake: When the spirits first come out of the TV, notice the wall beside the TV. There's nothing there. Brian says who's here? Next shot shows a filing cabinet with a pink blanket on top.
The Cleveland-Loretta Quagmire - S4-E5
Continuity mistake: During the cut away to Superman and the good trying to attack him, Superman is on a ledge around 5ft in height however this instantly becomes a mere step. (00:08:30)
Fast Times at Buddy Cianci Jr. High - S4-E2
Continuity mistake: When Stewie says about doing the robot to Brian, the stack of papers in front of him just simply disappear. (00:11:10)
Other mistake: When Peter tells Brian that "James Woods is being taken care of by top men" they show a philips head screw being hammered into the wooden crate in the warehouse. (00:20:15)
Other mistake: Lois goes to the bathroom at the bowling alley. There's only one way to the bathroom yet Quagmire beats her there and has time to hide in the stall. There's no way he could've done that considering he went after Lois.
Other mistake: When the cut scene goes to Star Trek The Next Generation, all of the rank pips on the crew's collars can be seen on their left side. All Starfleet rank insignia, with the exception of Admirals in this series, is situated on the right side. (00:18:45)
The Courtship of Stewie's Father - S4-E16
Character mistake: Lois takes a basket of clothes downstairs to wash them. But she puts them in the dryer instead of the washer.
Factual error: When Lois, Meg, and Chris go to the stage show on the West End, "theater" is spelled with the Americanism "-er" instead of the UK spelling "-re."
You May Now Kiss The...Uh...Guy Who Receives - S4-E25
Other mistake: When Peter is eating the Brownie, it stays the same with no bites.
Continuity mistake: When Stewie mentions to Brian about his "Life's a beach" mug, the squares on his calender keep changing size.
Continuity mistake: Peter falls from the roof of the Clam landing on Joan Cusack. He puts her body in a mailbox that appears just for this scene.
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 ★