The Jazz song played during the dancing scene is Frenesi by Artie Shaw.
After Frank walks out the front door, you can hear Peter Boyle laughing along with the audience as the other 4 principal actors are acting.
The Steve Miller Band song "Jungle Love", which plays at the end of the episode would become the theme song for the show for a while after this.
During Ray's drunken speech about Debra being better than everyone else, the amount of liquid in Rays's cup goes from nearly empty to almost full again without him adding to it.