In the series finale, "Chasing Zoey," Stacey's lisp is fixed. She has her lisp in this episode because of the production order. This episode originally was going to air at the end of season three as a recap episode.
If you look behind Zoey on the wipe board, you can see the words "Clip Show," which is the title of this episode in Canada.
When this episode aired in Canada, they showed showed a clip from season 4 that had not even been aired on television yet.
In this episode, it's said that James works at his uncle's hardware store, but in "Dinner For Two Many", it's his uncle's construction site, unless he has two different uncles.
In this episode, Zoey mentions that her dad knows a guy who manages the Chambrulé hotel in Maui. The Chambrulé hotel is the name of the hotel in the movie "Drake & Josh Go Hollywood."
The car that Michael drives is the same car that Drake and Josh drive in the episode of Drake and Josh titled "The Wedding." This may be due to the fact that both shows are produced by Dan Schneider.
When they're talking on the phone, Zoey asks Chase how England is. He replies with some stereotypical comments and adds, "You've seen movies," as an explanation, which is a strange thing to say to someone who lived in England for a brief period.
Chase didn't react at all when Vince came to the prom with Lola. In the past, Vince and his team beat up Chase, Michael, Mark, and Logan. When everyone else first saw Vince return in the episode "Vince Is Back," they were mad and wanted comeuppance. But Chase might have already known Vince was back, most likely because Michael, Logan, or Zoey would have called and told him.
When the students are arriving at Prom, the loudspeaker says that they should sign in with Mr. Bender. Mr. Bender was a teacher featured in episodes from seasons one and two.
The site highschoolcrazy.com that Quinn and Lola visit actually relocates to iCarly.com.
All of the main characters except for Dustin and James end up with a boyfriend or a girlfriend. Chase is with Zoey, Logan with Quinn, Michael with Lisa, Vince with Lola, and Mark with Stacey.
In this episode, Zoey asks Chase if he is okay, and tells him that his arm is bleeding. These are the first things she said to him in the pilot episode.
When Dustin hands Quinn the Canadian dollar, it is clearly not one due to the fact that Canadian dollars are coins and not paper.
When Logan comes up to Quinn before prom, and when James 'scares' Zoey, iCarly.com is the website the both of them are visiting.
Chase and Zoey officially become boyfriend and girlfriend in this episode.
Zoey and James break up and remain friends in this episode.
Zoey and Chase kiss for the first time in the whole series.
After getting hit by a car in this episode, Stacey talks normally.
Logan and Quinn's relationship is revealed.
Although credited, Paul Butcher (Dustin) does not appear in this episode