Partial Terms of Endearment - S8-E21
Continuity mistake: In this episode, Lois is shown to have dated Naomi during college. But in the episode "Meet The Quagmires", it was established that Lois and Peter were already dating when Lois was eighteen. She accepted Peter's marriage proposal at that age. She would have been engaged and possibly married during college, not dating other people.
Other mistake: Lois goes to the bathroom at the bowling alley. There's only one way to the bathroom yet Quagmire beats her there and has time to hide in the stall. There's no way he could've done that considering he went after Lois.
The Thin White Line (1) - S3-E1
Other mistake: During the scene at the rehab clinic when Brian is jogging, Peter asks if he wants to go "mess with the pregnant teens across the lake." Brian says no because "Group therapy, two o'clock." However, the sky looks as if the sun is about to rise or just set. The time cannot be anywhere close to 2:00, neither AM nor PM.
Continuity mistake: Peter's boss tells him to put on his helmet. He reaches behind him and out of nowhere, a red helmet appears in his hand.
Factual error: Brian is sitting on the couch smoking weed. Joe knocks on the door and Brian just waves the smoke from the air. Joe is there to give Brian a drug test and says nothing about smelling weed in the air. There's no possible way he didn't smell it! You can't just wave your hand and get rid of the smell.
Other mistake: Throughout many episodes, it's discovered that anybody that touches Death immediately dies. When Stewie learns that Death has come for Peter, he immediately touches his finger to lead him inside but manages to live.
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.
Other mistake: When the cut scene goes to Star Trek The Next Generation, all of the rank pips on the crew's collars can be seen on their left side. All Starfleet rank insignia, with the exception of Admirals in this series, is situated on the right side. (00:18:45)
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.
Blue Harvest - S6-E1
Continuity mistake: When Obi-wan (Hebert) stars singing, Luke (Chris) is holding his stormtrooper helmet. About a quarter into the song, there is no sign of the helmet Luke was holding.
The Most Interesting Man in the World - S12-E17
Continuity mistake: At the Clam, when Peter mentions it was smart to wait out the thunderstorm, it is the middle of the day, but when Peter runs out of the Clam to go find Stewie, about 45 seconds later, it is suddenly sunset. (00:03:50 - 00:04:35)
The Courtship of Stewie's Father - S4-E16
Character mistake: Lois takes a basket of clothes downstairs to wash them. But she puts them in the dryer instead of the washer.
Continuity mistake: In the episode with Peter dating a girl with a black hand, in one scene, we see Peter with the girl. After Peter leaves in the 3rd shot, the black on her right hand now appears on her left hand.
Factual error: When Lois, Meg, and Chris go to the stage show on the West End, "theater" is spelled with the Americanism "-er" instead of the UK spelling "-re."
You May Now Kiss The...Uh...Guy Who Receives - S4-E25
Other mistake: When Peter is eating the Brownie, it stays the same with no bites.
Continuity mistake: When Lois enters the kitchen while talking about needing the checkbook, her shoes aren't exposing her feet like they usually do.
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)
Continuity mistake: Peter states at one point he had no brother or sister and only had a bro-ster. But in the earlier episode "Mother Tucker", it was revealed Peter had a twin brother called Thaddeus Griffin.
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