In this episode Elaine claims to have never seen a foreskin on a man. In another episode she says she has seen it and didn't like it, because it had no face, "no personality".
George (Jason Alexander) comes out of the bathroom and he and Jerry (Jerry Seinfeld) debate the merits of a button fly on jeans. As Jerry tells George (Jason Alexander) that a zipper fly is like "a mink trap down there," he is standing by the counter in the kitchen. When the camera angle changes, George can be seen still buttoning his fly, but Jerry has already picked up his jacket and is heading back to the kitchen.
When Kramer sets the cardboard tray in his lap, the cup jumps from the tray to his hand between shots.
In the painting Nina (Catherine Keener) did of Kramer (Michael Richards) he is holding his hands, but when he is posing for the painting, his hands are on his knees.
When Mr. Lippman is telling Elaine the story of the woman who refused to take off her Baltimore hat at the Yankee game, he explains that his accountant, Lenny, gave the tickets to his daughter. Then Lippman adds, "her daughter gave the tickets to some friends," when he should have said, "his daughter."
During the scenes at the ball game, the footage of the actual players on the field is of a noticeably lower quality than that of everything else going on, revealing that the crew just put scenes of "stock footage" of a game in the scene. In fact, the footage quality is identical to when they are watching a game on TV near the conclusion.
When Jerry answers the buzzer to talk to George, he presses the button to let him up before he finishes speaking. He also doesn't hold the button to talk long enough.
When Kramer (Michael Richards) yells out, "Hey Charlie, you better catch them here. This ain't Philadelphia!" the image of the 3rd basemen making the play is not Charlie Hayes, the former Phillies 3rd basemen who was later traded to the Yankees.
George, Kramer and Elaine attend a baseball game at Yankee stadium between the New York Yankees against the Baltimore Orioles however the news paper the next day shows the front page of the sports section and it was the 1991 national league championship series between the Atlanta Braves against the Pittsburg Pirates.
In act 2, scene 11 in Lippman's office, Lippman should have said "his" instead of "her." Lippman (to Elaine): "So every once in a while they throw him a couple of seats and last weekend he gave them to his daughter. She's an artist, by the way. Anyway, her daughter gives 'em to some friends, you know.