Although they are watching for the comet, there are so many lights in New York that you cannot see the night sky.
In this episode, Monica mentions to Chandler that he's reading about Archie and Jughead. Cole Sprouse who plays Ross' son, Ben, went on to star in the CW's Riverdale as Jughead.
Jason George is the 1st future Grey's Anatomy (2005) star to appear on the show. Melissa George and Ellen Pompeo appear later in the series.
Jason George also plays a firefighter on House, Grey's Anatomy, and Station 19.
When Chandler and Monica are in bed together, he asks her which movie was Armageddon and which was Deep Impact. Bruce Willis starred in Armageddon and last season he portrayed Ross's girlfriends father Paul.