Continuity mistake: After Joyce reveals the secret on the news it soon cuts to Joyce sitting in front of the mirror at Quahog 5, and in the mirror's reflection we see the door behind Joyce opens at the real Lois' right side (blocking the lightswitch), but in the next shot facing Lois the door opens the opposite way (not blocking the lightswitch). (00:13:25)
Continuity mistake: During the AA meetings, Dr. Hartman's, Bruce's, and Tom's buttons switch sides between shots.
German Guy - S9-E11
Continuity mistake: When Franz Gutentag falls off the step towards the end of the episode, Herbert is on the porch of the house and reaches out to him. When we see the shot of Gutentag falling in slow motion and the birds fly away, there is no sign of Herbert on the porch.
The Hand That Rocks the Wheelchair - S9-E12
Continuity mistake: When Stewie spots "evil Stewie", the evil clone is off the carpet and next to the hi-fi. In the very next shot he's moved far closer to Stewie and Brian.
The Hand That Rocks the Wheelchair - S9-E12
Continuity mistake: Meg drops Joe's gun into Bonnie's bag at the airport, but it's zipped closed - you hear the baggage check guy unzip it before looking in it.
Continuity mistake: Peter gives Chris a carton of cigarettes and lights one for him to smoke. Camera cuts to Lois, then back to Chris and the cigarette in Chris's mouth and the carton on his lap are nowhere in sight.
Continuity mistake: When Carter destroys the bench after being the first contestant out of wining the old dirt bike, in the digger he backs off screen and you hear a crash and a car alarm, but when the shot is widened you see two cars where he backed into and both are undamaged.
Continuity mistake: When Peter walks into the dry cleaners the door sensors go off, and as Peter leans down to wave his hand in front of a sensor, all the buttons on his shirt switch to the opposite side, then revert back. (00:02:15)
Continuity mistake: When Mr. Washee Washee walks into the bedroom while pointing a gun at Peter, the buttons on Mr. Washee Washee's shirt keep switching to the opposite side in following shots. (00:05:15)
Continuity mistake: When Mr Washee Washee discovers Peter in his bedroom, Peter's glasses are missing when he says the line, "it seems we're at an impasse", but instantly reappear at the start of the next line, "how do you propose we settle this?"
Continuity mistake: As Peter pulls up outside the laundrette, there are parked cars visible on the other side of the road. In the next shot, as Peter is exiting his car, the cars have disappeared.
Continuity mistake: When Lois starts moving Stewie's crib, there's a crescent moon on the headboard with its points facing the left, but in the following shots the crescent moon is facing the opposite way. (00:01:40)
Continuity mistake: When Carol's taxi stops in front of the house Lois rushes out to welcome her sister, and in the first shot the semaphore flag is attached to the curbside mailbox with its "L" shape facing the ground, but in the next shot as Quagmire shows up, the flag is now attached to the mailbox the opposite way. (00:02:35)
Continuity mistake: When Mayor West and Carol are walking on the beach, the buttons on West's suit switch to the opposite side, and this occurs again in later scenes. When Carol and West get engaged, the buttons on Lois' blouse switch sides as well. When Carol's ex-husband, Randall, gives Peter the bag of fish, Randall's buttons also switch from the left to right between shots. (00:06:30)
Continuity mistake: Peter states at one point he had no brother or sister and only had a bro-ster. But in the earlier episode "Mother Tucker", it was revealed Peter had a twin brother called Thaddeus Griffin.
Continuity mistake: When Bertram climbs through the window into Stewie's bedroom, just as he tiptoes past a sleeping Stewie, the lightswitch on the wall is in the up position and the room is dark, but two shots later Stewie wakes up and now the lightswitch is in the down position so Stewie flips it up, then the light turns on. (00:10:20)
Continuity mistake: When Bertram sneaks into Stewie's bedroom, he tiptoes past Stewie, who is sleeping. But in the next close-up of Bertram, the shot pulls back and pans the room so we see Stewie's crib is empty. But in the next shot, Stewie is still sleeping, and then he wakes up. (00:10:25)
Continuity mistake: When Brian and Stewie arrive in Leonardo's atelier, we know that they are in Florence for two reasons: because of history and because we see Palazzo Vecchio (which is in Piazza della Signoria, in Florence) outside the window. Then, when Stewie and Bertram are fighting with Leonardo's flying machine, the city of Florence is wrongly represented as if it were Venice, with the sea, the lagoon, and the canals.
Continuity mistake: While Lois is in the Paris hotel suite packing her suitcase there are two doors behind her, and Bonnie opens one of those doors. The other door has its door knob on the left side of the door, but when Lois walks over and opens that other door to reveal Joe, its door knob is now at the right side of the door. (00:18:00)
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 ★