The major plot to the episode is that there are time loops, and Carter is the only person that can remember anything about the previous loops.
Prior going through the time loop each time Carter talks to Stark. After the third time through the time loop Carter asks Stark, "Does your ego even fit in this building?"
Carter goes through the time loop two more times then convinces Stark the time loop is real. At the end of the episode Stark is in the partical accelerator to re-accelerate time and eliminate the time loop. Carter asks Stark, "Are you sure? What about Allie? What if you can't...?" Stark replies, "Of course I can, my ego is bigger than the building, remember."
Since Carter is the only person that remembers anything about previous time loops Stark couldn't have remembered the comment about his ego being bigger than the building.
Prior going through the time loop each time Carter talks to Stark. After the third time through the time loop Carter asks Stark, "Does your ego even fit in this building?"
Carter goes through the time loop two more times then convinces Stark the time loop is real. At the end of the episode Stark is in the partical accelerator to re-accelerate time and eliminate the time loop. Carter asks Stark, "Are you sure? What about Allie? What if you can't...?" Stark replies, "Of course I can, my ego is bigger than the building, remember."
Since Carter is the only person that remembers anything about previous time loops Stark couldn't have remembered the comment about his ego being bigger than the building.
The ketchup stain on Jack's shirt is the same both times, but neither time matches the spill from when it happens and since it happened differently, the stain should not be the same.
At 5:37 into the show, Carter's tie suddenly changes from being tied in a lop-sided "hand-and-a-half" knot to a more professional, symmetrical knot resembling a half-Windsor or a Pratt knot. It stays like that in the next loop, but then at 15:13, at the wedding, the knot changes to what looks like a Prince Albert knot.
In the last episode of Season 1: "Once in a Lifetime", Allison complains that she'll never get used to the sonic shower in Carter's house. In this episode, the shower is a typical water shower.
Sheriff Carter cuts his right cheek while shaving. Later Zoe asks him if he cut himself shaving and the cut is on his left cheek.
When Stark has finally realized Carter is right, Stark mentions it is "Sally's" big day, using the characters real name.
Stark was talking about Allison, whom he occasionally called "Allie". He said that it is Allie's big day, but the way he said it made someone think he said "Sally."