When Angela is threatening Jerry, he is filmed from the front and back. His left hand is positioned differently, depending on the angle. In one he is pointing at the ceiling and in the other all four fingers are extended.
Towards the end of the episode Kramer (Michael Richards) says to Jerry (Jerry Seinfeld), "I don't even want to look at you anymore." After he says this, he is facing the audience but in the next shot, he is facing Jerry.
When George (Jason Alexander) and Jerry (Jerry Seinfeld) are sitting on the couch reading magazines, Jerry flips the page of his quite sharply. When he holds it up to read, you can see that a part of the page has been torn and can be seen hanging underneath. Jerry seems not to notice it.
When Jerry (Jerry Seinfeld) and Becky (Helen Slater) are talking in Becky's apartment, the camera drops down and the scene is out of focus.
When Jerry is talking to Elaine via his car phone in the start of the episode, Elaine tells Jerry "You gotta follow that car". The audio for Jerrys response of "what?" was taken from the Elaine soundstage shoot instead of the in car shoot with Jerry.
Some scenes in Jerry's apartment show the top edge of one of his walls, revealing a background of the walls of the sound stage the show was filmed on, and a lack of a ceiling for the apartment.
The top of the studio set can be seen as the credits roll at the end.