Deliberate mistake: At RAW, just as the host starts showing the girls to their table, there is a lady at the bottom right corner of the screen whom you can see is only pretending to eat her food. She puts it up to her mouth, pretends to take a bite, then moves it away again.
Plot hole: In this episode Carrie runs into Aidan, who now has what looks to be about a 6 month old baby (Tate). This doesn't seem possible, as Carrie and Aidan would have only broken up about a year ago, and Miranda was around 6 months pregnant when they broke up. Brady is only about 5 months old at this point in the series, leaving Aidan only roughly 8 months to have this baby - but Aidan lay in bed for about a month and then dated Nina Katz for awhile. Timeline just doesn't seem to fit.