I just watched the pilot episode of seinfeld and noticed that jerry refers to kramer as kessler when he bursts in and blurts out the outcome of the game jerry had taped earlier..."kessler, what are u doing??" in the next episode,
, he is referred to as kramer, and isn't called kessler again in any episode
where there is a flashback to jerry and kramer's first meeting, jerry goes "hi, u must be kessler" and kramer replies "actually its kramer"...as this conversation clearly took place before the pilot episode, is it an oversight by the writers? or is there an explanation?