Jerry Seinfeld credits the phrase, "These pretzels are making me thirsty," from the episode "The Alternate Side" as the first of the show's many catch-phrases. During his next stand-up tour, audience members would chant this during virtually every performance.
According to Jerry Seinfeld, this is his least favorite episode of the series. Seinfeld was uncomfortable with the scenes involving Owen (Edward Penn).
George wears a jersey with "Broadway Bound" on it in the first scene. Jason Alexander played Stanley in the original Broadway cast of Neil Simon's play "Broadway Bound."
The title refers to a parking regulation whereby parking is banned on one side of the street on a particular day to allow for its cleaning and on the other (or alternate) side on a different day. Sid's (and George's) job is to move cars from the side being cleaned to the legal side when the regulation is in effect.