: Kramer's conversation about the horse "Papanick" ("His father was a mudder, his mother was a mudder") is a nod to a classic Abbott and Costello routine.
: Julia Louis-Dreyfus was visibly pregnant during filming; she spent most of the episode carrying a large wedding gift to hide it. The SubwaySeinfeld : Season 3 Episode 13
: Larry David provides the voice of the subway conductor heard over the PA system. : Kramer's conversation about the horse "Papanick" ("His
: Elaine is the "best man" at a lesbian wedding, but her train loses power and gets stuck. This leads to one of her most iconic moments: an increasingly frantic, bleep-filled inner monologue about claustrophobia and the "niceties" of life. : Elaine is the "best man" at a
: Due to budget and technical constraints, the same subway car set was used for every character's storyline. Crew members rocked the car with 2x4s to simulate movement.
: Dressed for a job interview, George meets an enchanting woman on the train. He blows off the interview to follow her to a hotel, where she handcuffs him to the bed and robs him of his clothes and wallet.