In the uncut DVD version of the episode, Rachel, Phoebe and Chandler go to Central Perk in search of the presents Monica had hidden from them. Rachel flirts with Gunther to try and find out where they are and he faints. Also, after the countdown to New Year's on set, Ross and Monica continue to dance on the platform after everyone leaves.
This is the first time it's revealed that the door in the back of Monica's apartment is a closet door. In this episode, it has a Christmas wreath and Rachel searches the closet for presents.
The episode opens with the decorating of Monica's Christmas tree, although Monica and Ross are Jewish. However, the creators have stated that it's their father, Jack, who is Jewish, and not their mother, so it's likely that they incorporated elements of Christmas as well as Hanukkah into their family celebrations. It would also be for Chandler who isn't Jewish.
The Magna Doodle has a person with a Santa hand puppet saying Ho Ho Ho.
The song 'Every Word Means No' by Smash Mouth playing at the beginning of the Rockin' New Year's Eve taping was also used in the first scene of Danny's party in TOW Ross Moves In.