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)
Halloween on Spooner Street - S9-E4
Continuity mistake: When Joe is dispatched to the domestic disturbance, while he's in the house with the couple Joe's badge quite instantly switches to the opposite side of his shirt, then it's back to its original side. (00:11:10)
Continuity mistake: At the start, while Peter and the kids are watching TV, the buttons on Peter's shirt are on his left side, but in Peter's closeup the buttons switch to his right side, where they usually are. The switching happens again in following shots.
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)
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: 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 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)
Episode VI: It's a Trap - S9-E18
Continuity mistake: In S8xE20, "Something, Something, Something, Dark Side," when Han was frozen in carbonite he was smiling with head turned toward his right side, but in this episode, after Jabba watches Luke's message, Han's carbonite is hanging on the wall and now Han is smiling with his head turned toward his left side. (00:05:10)
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)
Excellence in Broadcasting - S9-E2
Continuity mistake: Throughout the episode the buttons on various suits and shirts repeatedly switch sides, between shots. For example, while Brian and Rush are in the RNH building. (00:08:15)
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)
And Then There Were Fewer - S9-E1
Other mistake: As Joe is driving up to the house, just before coming to a complete stop, you can see that his window is completely closed. After stopping, Peter says "Joe?" Joe says "Peter?" Joe's window is now fully open. Trouble is, Joe seems to be completely surprised by Peter standing there which implies he never saw Peter even after stopping. His window has mysteriously opened immediately. (00:04:05)
Continuity mistake: When Peter returns home from being hyped up on Red Bull, he has numerous cans in his arms. When he sees Stewie he immediately drops the cans on the floor but when the camera pulls back as he sits down with Stewie in his lap, the cans of Red Bull are nowhere to be seen.
Factual error: When Peter is on The Price is Right, Drew says he's the top winner of the day so he'll spin first. However, the top winner always spins last.
Episode VI: It's a Trap - S9-E18
Continuity mistake: When Leia frees Han, the buttons she pushes to free him change repeatedly.
Episode VI: It's a Trap - S9-E18
Continuity mistake: Luke's handcuffs disappear when he almost falls into the pit.
Episode VI: It's a Trap - S9-E18
Continuity mistake: When C-3PO says "Oh My God!", there's a Greedo-like alien on the stairs, but when R2 plays the message about Luke, the alien is no longer there.
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.
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.
Chosen answer: It's a real song called "Elvira". Originally by Dallas Fraizer in '66, however, this version seems to be the Oak Ridge Boys cover version. However, the mega lesbians skip the verse and just sing the chorus after the opening line.
Bishop73