Merlot Down Dirty Shame - S5-E15
Corrected entry: When Klaus and Hayley are driving Steve to school, while he believes he is in a dream, Haley is driving the car. However, in the next shot, Haley is in the passenger seat and Klaus is behind the wheel. (00:11:11)
Stan Goes on the Pill - S9-E14
Corrected entry: Bullock cuts Stan's hair because he said he drew it a little short, but when Francine, Stan and Hayley are in the bar, Stan's hair is back to its normal length.
Correction: We don't know how the pill works. Female Stan's hair obviously grew longer than regular Stan's hair, and in no time at all, so it's reasonable to think it grew to a specific length and if it's cut it would grow back to that length, in no time at all.
Weiner of Our Discontent - S4-E18
Corrected entry: In this episode Akiko is older than she is in 2-11 "American Dream Factory".
Correction: This episode also occurs later and thus she would be older. While most characters don't age, time still passes (such as when Jeff is away in space) and some characters do age (such as Greg and Terry's daughter). It's not considered a mistake, it's just how the show moves along.
Corrected entry: While Francine is giving Stan his breakfast in bed, her negligee is solid baby or light pink. Then when Francine approaches Stan, you can see a hot pink bow attached to the negligee, close to her bust. So, basically, her negligee changes. (01:00:45)
Correction: The negligee never changes and the bow is there the whole time, it was just covered up by the anniversary card. In fact, when she says good morning you can see the top part of the bow.
Corrected entry: In the scene after Stan shuts his hand in the door, he and Francine are in the kitchen. Stan is standing oddly with his left hand outstretched, as if he is holding something, but nothing is there. When the camera angle changes, Stan is holding a white mug in that hand.
Correction: When it cuts to the kitchen, he's holding the white mug before the camera angle changes. The white mug just happens to be drawn in front of the white refrigerator so it may be difficult to see, but it's definitely there.
Widowmaker - S3-E12
Corrected entry: In "Widowmaker" Stan pronounces Laos incorrectly (common mistake) and is sitting on a beach by the sea. Laos has no coastline (and this cannot be explained as being a river, as it's definitely the sea).
Correction: Stan is not very bright, so his mispronunciation of Laos is completely in character. Not sure about the coastline.
Dreaming of a White Porsche Christmas - S10-E6
Corrected entry: Because of a Christmas wish Stan becomes Principal Lewis. While running away from the CIA Avery Bullock yells out "Smith, stop or we'll shoot!" Stan hadn't changed back to himself yet. (00:14:40)
Correction: Stan doesn't become Principal Lewis, they just change lives (e.g., decisions they made, careers, lifestyle, etc). This is evident by the fact that his name is still Stan and Brian Lewis is still Brian.
Correction: In the next shot we're looking at them in the rear view mirror, not head on through the windshield like before. Their positions are flipped due to being a mirror image, but Hailey is still in the driver's seat.