Continuity mistake: When Peter and the family reach the top of Mt Everest, it shows a long shot of them all by themselves. Cut to Lois talking - another family is suddenly sitting there, and the woman says "we beat you by one hour and 11 minutes." (00:14:00)
Continuity mistake: In the Clam when Brian says about he knows what's going on, Quagmire disappears from behind his drink on the table. (00:10:00)
Valentine's Day in Quahog - S11-E12
Continuity mistake: When Quagmire gets shocked, the plug socket has 3 holes in it. When Quagmire is hitting the ground, there is only 2. (00:04:20)
Valentine's Day in Quahog - S11-E12
Continuity mistake: Just as Meg's date is about to leave the motel, the level of ice in the bath changes. Note its position in relation to Meg's Scar. (00:08:30)
Continuity mistake: When we see Brian drinking in the Clam for the first time, he finishes his drink but when Peter appears his glass is half full again. (00:08:20)
Space Cadet - S11-E9
Continuity mistake: Peter cuts his head with the comb near the start, however the blood simply vanishes from his head. (00:03:10)
Jesus, Mary and Joseph! - S11-E8
Continuity mistake: At the start the amount of decorations on the tree changes quite significantly between consecutive shots. (00:01:10)
Friends Without Benefits - S11-E7
Continuity mistake: In the very first shot, Meg picks up her milk with her left hand and has her right hand on the table. The shot changes to a closer one and her right hand is lo longer on the table. (00:00:35)
Lois Comes Out of Her Shell - S11-E6
Continuity mistake: When Stewie opens the second box, the head is bigger than the box. Meaning the lid shouldn't have been able to sit flush on the box. (00:15:40)
Lois Comes Out of Her Shell - S11-E6
Continuity mistake: When Stewie is colouring on the floor his position keeps changing between shots. Note his book in relation to the rug. (00:14:30)
Lois Comes Out of Her Shell - S11-E6
Continuity mistake: When Lois comes back from getting a tattoo, Brian's position on the rug changes instantly. (00:07:40)
Lois Comes Out of Her Shell - S11-E6
Continuity mistake: When Lois runs out the room, the glass and paper that Peter was holding simply disappeared. (00:05:40)
Lois Comes Out of Her Shell - S11-E6
Continuity mistake: At the start, the park bench moves closer to the paving slabs between the long and short camera angles. (00:01:40)
Continuity mistake: The trolley of item's that Peter has disappears when Briggs is shooting at them. (00:18:50)
Yug Ylimaf - S11-E4
Continuity mistake: The damage to the bedroom wall changes from when they hit the wall to when they wake up. (00:05:30)
Yug Ylimaf - S11-E4
Continuity mistake: When Stewie and Brian are thrown into the wall the debris on the floor around them changes when they come to. (00:05:30)
Continuity mistake: Peter rescues the Fishmans. When the family pulls him up he's holding both of them under one arm and has a huge rock that came from nowhere under the other arm. (00:19:50)
Continuity mistake: When walking down the mountain, in the long shots, there are footprints between Brian and Stewie. But in the close up there isn't any. (00:17:00)
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 ★