It's weird how Brian is teaching Stewie about religion, seeing how Brian is atheist.
Chris does not appear in this episode.
Featured music in this episode: "These Dreams" and "What About Love?" (both with re-worked lyrics), Performed by Heart.
This title was originally called "Fairy Guy".
Because he was brought back from the dead in the previous episode, the opening theme is back to featuring Brian Griffin.
Brian Griffin is brought back from the dead in this episode.
This is the very first episode not to feature Brian since the character had been killed in the previous episode. As for this episode and the next, Vinny replaces him in the opening credits. However, there is still a picture of Brian in this episode.
With Brian 's absence, none of the main characters appeared in the whole show.
In a DVD-only scene, one of Stewie's plans to get rid of Vinny involves spraying him with a skunk, which prompts him to take a tomato juice bath. In a later episode, Brian gets sprayed by a skunk.
The DVD version is the first, and so far only, time we see Vinny collarless.
Stewie said he'd gone forward in time to a future Christmas. Would he not have realized after appearing at his home that Brian was no longer there? Even if he used his return pad immediately after visiting the store he would have still had to spend time at the house to avoid the rest of the family.
Featured music in this episode: "I Hate Myself For Loving You" by Joan Jett and the Blackhearts.
When Peter is drunk, he mentions Maggie, Bart, and Mr. Plow. These are characters from The Simpsons, Mr. Plow would be Homer.
Jerome from the episode "Jerome is the New Black" makes a return appearance.
The FOX ad for this episode featured the following dialogue:
Peter: You're not like over 40, are you?
Lois: What's wrong with women over 40?
Peter: Their bodies and personality.
This dialogue was not heard in the actual episode.
In the "black guy in Sweden" cutaway, they are talking German "blacken sie been" roughly translated to "he is black"
Meg was seen being sucked out in the vacuum by Stewie, but in the next scene, she is back in in the shuttle.
Lois is 43 years old.
Joe's backstory of facing the Grinch and falling off the roof of an orphanage changes to being caught with a wire while undercover and having his legs literally shot out from under him.
Even though the people were going backwards, they spoke forwards instead backwards.
Joe Swanson, himself, admitted that Kevin had died in Iraq in a previous season, But he is alive and well now.
The first episode with the cast being British and how their faces are made is the same design for the British family that was suppose to be in The Cleveland Show, but were written out because how the father and the son had impolite faces.