Other mistake: The tenant board member tells George that Mr. Eldrige in apartment 8C has decided he wants the new apartment. However, the new apartment in question has a 3-digit number - 808 I believe. This indicates that the building would not have single digit numbers and letters (Such as 5E, 8C, etc.) as part of its numbering system.
Seinfeld (1990)
1 mistake in The Andrea Doria
Starring: Jason Alexander, Julia Louis-Dreyfus, Michael Richards, Jerry Seinfeld
Genres: Comedy
Elaine: The thing about George is, he's an idiot.
Trivia: No matter who the characters in Seinfeld call, they never have to look up the phone number in the phone book. They have the phone numbers to every restaurant, hotel, and business memorised.
More questions & answers from Seinfeld
Answer: The name is Delores. He shouts that name at the end of the episode. Then in a later episode, "The Foundation", he runs into her. And he repeatedly calls her Delores.