Chitty Chitty Death Bang - S1-E3
Continuity mistake: After Lois says, "When Meg and Chris turned one I missed everything," it flashes back to Lois writing 'happy birthday Meg' on the cake, and there's wallpaper border at the top of the walls, but when Peter asks her what she's doing in the kitchen the wallpaper border is gone. The paper cups that Lois filled with punch also vanish, and the rolling pin, board, etc. suddenly appear. (00:11:30)
Other mistake: When Peter and the gang are watching TV drinking beers, the TV doesn't have any cables on the back. So how has it got power or a TV signal? This mistake was later referenced in "Back to the Pilot." (00:04:16)
Revealing mistake: When Brian asks Peter how much money they're getting from welfare, his neck is drawn over his collar, making his head look like it's disconnected from his body.
Brian: Portrait of a Dog - S1-E7
Continuity mistake: While Peter and Brian are arguing in the kitchen the side door has a handle on the right side, but when Peter insists that Brian use the leash Brian storms out of the house, and the door's hardware has changed to a doorknob that is now on the left side of the door.
Continuity mistake: When Lois is outside, the mail lady gives her Peter's check. The front door has no window on the outside, yet inside there is one. (00:14:25)
Continuity mistake: While cooking dinner, and waiting for Peter, Lois has a watch on. As she comes down the basement stairs, it's suddenly gone.
Continuity mistake: When Peter winks at the camera wearing an afro, it is black, but when he sits back down, the afro is brown.
Continuity mistake: During the flash back at the ice cream store Peter's eyes change in size twice before he licks the ice cream and then one more time after he licks the ice cream before falling down.
Continuity mistake: Stewie's overalls are missing during one of the shots of the Griffins at court.
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