Continuity mistake: When Peter is going for ice cream, his fork simply disappears from his plate. (00:18:40)
Character mistake: In "The Drunken Clam", while Quagmire and Joe are playing table tennis, a poster on the wall incorrectly spells "Pawtucket Patriot ale" as "Pawtucket Patrtot ale." (00:00:30)
Other mistake: One of the ping pong balls that fell off Peter goes through the floor when it hits the ground. (00:00:50)
Revealing mistake: Right after the "Ghost Whisperer" cutaway, while Peter, Chris, and Lois are sitting on the couch, Chris' eyes disappear for a single frame. (00:09:10)
Continuity mistake: When Meg is talking about getting a job and buying a car, Stewie goes from reading a book to reading a newspaper. (00:09:20)
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: When Meg gets promoted, there is a gap in the books on the shelf. When she stands up, the gap is gone. (00:18:30)
Continuity mistake: When Meg's boss tells her to fire Peter, he has plungers on his nipples. He walks over to Meg and takes them off. A second later his shirt is tucked in without Peter being able to tuck it in. He's holding plungers in both hands.
Continuity mistake: The gun in Peter's first cutaway vanishes when the stage goes dark.
Continuity mistake: When Chris is saying about the Army being awesome, there is nothing green on his plate. When the shot changes, something green has appeared on his plate. (00:01:20)
Continuity mistake: At the start, Chris is sat next to Peter at the table with a visible gap between him and Meg. When Lois stands up, Chris is not closer to Meg as the gap has disappeared. (00:02:20)
Continuity mistake: When Stewie is talking to the army recruiter, there is 2 stacks of paper on the desk. When he signs up, one of the stacks has disappeared. (00:07:10)
Continuity mistake: When Lois bends down to pick up the CD off the floor in Chris' room, the items around the shirt on the floor change between shots. (00:16:20)
Continuity mistake: Stewie and Brian shoot themselves in the foot. Next shot the holes have disappeared. (00:18:50)
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.
Whistle While Your Wife Works - S5-E5
Other mistake: When the guard is turning the vault handle, the handle doesn't move, but the guard's arms do.
Whistle While Your Wife Works - S5-E5
Continuity mistake: When Lois is helping Peter get his work done while he has the hand injury, Peter gives Lois the flip book to proofread. During this scene the phone power cord appears then disappears, and the door knob as well as the kick plate vanish then reappear properly.
Revealing mistake: As Stewie is walking toward Herbert's house, he just suddenly appears mid-screen.
Chick Cancer - S5-E7
Continuity mistake: When we see the banner saying "Happy Birthday Quinn!", the I is next to the U. However, in the close-up there is a sizeable gap between them. (00:12:50)
Chick Cancer - S5-E7
Continuity mistake: Just before Peter announces his decision to make a chick flick, the tissues on his lap change position.
