Continuity: When Jerry and Elaine are in the kitchen talking about circumcision, in some shots there is cereal on Jerry's spoon, and in some shots there isn't.
Continuity: In the episode where Kramer becomes a ball-man, the episode ends with them at a tennis match. It shows a shot of the court, and no one is standing anywhere near the poles of the net. In the next shot, Kramer is crouched down next to the pole, ready to dive for the ball.
Continuity: George has sex in his parent's bed, explaining "My bed is too small." But in another episode, we see George's parents bedroom, and they sleep in separate twin beds, not a big bed.
Continuity: When Jerry is eating the black and white cookie in the bakery, sometimes the vanilla side is on the left and sometimes it is on the right. It keeps switching between shots.
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Continuity: The bite size of the cookie that Jerry is eating changes between shots, without him even taking another bite.
Continuity: When Elaine and Jerry are confronting Testicoff about paying for the woman's hospital bill, in the view from behind Testicoff he puts his left hand down to scratch his pants. When the shot switches to a closeup of Testicoff, he is waving both arms above his head.
Continuity: At the end of the episode, Kramer is telling Olive that he met someone else. Olive says "who is she?" and she puts her hand on her hip, in the next shot both of her hands are back on the counter.
Continuity: In the episode with Courtney Cox, when she and Jerry are arguing over a can opener, a bottle of beer keeps changing positions whenever they cut back to Jerry.
Continuity: When Kramer is on the Regis and Kathie Lee show, after he puts up the cofee table, Kathie Lee has her coffee mug in her hand. In the next shot, her hands are empty, and in the next shot it's back in her hand again.