In the video store scene, the sticker on the top of the adult VHS tape Elaine is holding appears and disappears throughout the scene.
In the video store scene, the Adult videos were displayed with the other categories of videos. Video stores were required to have adult videos displayed in a private area away from the general public.
In the video store scene, one of the older women can be seen stepping down from the front of the stage as she walks away.
This episode was released in 1990, but in the scene after the birthday party right before Elaine and Jerry are in the taxi going home, Times Square is shown as the transition. You can see the films The Bodyguard, Malcolm X, and Passenger 57 displayed on the cinema board. All of these movies were from 1992. How can three movies released in 1992 be displayed on TV episode released in 1990? Must have something to do with syndication.