Barely Legal - S5-E8
Revealing mistake: Every time Cleveland's tub slides out of the house, there's never any plumbing attached to it. It just sits on top of the floor so it slides out easily. In this episode its very easy to see. (00:02:50)
Continuity mistake: As the helicopter is shown sliding down the hill, it is shown from several angles to have just a single rotor blade. However, one shot shows two rotors, one of which disappears halfway through the shot. (00:16:10)
Boys Do Cry - S5-E15
Revealing mistake: When Peter brands the cow, no burn mark is left on the cow. (00:18:20)
Boys Do Cry - S5-E15
Continuity mistake: At the Little Miss Texas pageant, just as Lois finishes saying "It's what you do when you're in Texas", she and Stewie walk past a judge and a little girl. In a close-up of Stewie, the judge and little girl have suddenly become a plant. (00:15:25)
Continuity mistake: Peter says "Oh crap" as soon as he realises Ernie the Giant Chicken is looking at him in the window. When the camera pans over to Ernie, he is standing an inch away from the glass. It then cuts to a wide angle where Ernie jumps through the window, and he has instantly moved back a few inches. (00:07:00)
Continuity mistake: In the restaurant scene during the chicken fight, after Peter says "oh yeah? What are ya gonna do about it?" the chicken already has a black eye just before they begin fighting.
Boys Do Cry - S5-E15
Continuity mistake: When Jake plays the piano the music on the sheet changes. Notice the big gap on the sheet which gets smaller. I know the sheet is changed, but the gap still changes.
Continuity mistake: When Peter shocks Chris he is right next to him. In the next shot Peter is further away from Chris. (00:04:50)
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: At the start we see Chris place some shorts on top of an orange shirt, with a small amount of orange sticking out the side. When the shot changes, a lot more orange is now showing. (00:00:50)
Continuity mistake: When Peter is going for ice cream, his fork simply disappears from his plate. (00:18:40)
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)
Factual error: When Peter is sent back to 1984, he plans to see Zapped! in the theater with Lois; Zapped! was released in 1982, and was no longer in theaters by 1984.
Boys Do Cry - S5-E15
Revealing mistake: When Lois places Stewie on the floor whilst at the Little Miss Texas pageant, one of the girls is seen looking at herself in a mirror, only she doesn't seem to have a reflection. (00:15:35)
Boys Do Cry - S5-E15
Other mistake: Towards the very end, they automatically head to the car, planning to leave Texas, without any of their items from the house packed in the car after running away from the mob at the Miss Pageant Contest.
Continuity mistake: All the army men including Brian and Stewie have USA symbols on their arms, but when Stewie and Brian talk to one of them, after they shoot each other in the foot, the USA symbol on the man's sleeve is orange lines and a arrow.
Airport '07 - S5-E12
Other mistake: As Quagmire sits at the bar, Hugh Hefner comes and gives him a pep talk. During it, he says John Holmes said Glen Quagmire is the best pilot. Unless he had seen the news or knew him personally, Hefner couldn't have called Quagmire by name.