Trivia: The Voice of George Steinbrenner on the show is co-creator Larry David.
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.
Trivia: In every episode of Seinfeld there is a Superman reference somewhere.
Suggested correction: This is a myth and not true. Even if you count seeing the Superman fridge magnet or Superman statue as a reference, they didn't appear until season 4 and 5.
Trivia: The Parking Garage was originally written to end with Kramer driving around the mall, but the actual car wouldn't start, so they went with that ending.
Trivia: In this episode, Kramer was supposedly carrying an air conditioner in an awkward-shaped box. To make it more realistic, actor Michael Richards actually did carry around an air conditioner for the entire episode.
Trivia: Jason Alexander was always fitted with an outfit that was one size too small. This was done to make George look "uncool." On the flip side of the coin, Michael Richards was always fitted with an outfit that was one size too big, to make Kramer appear loose and lanky.
Trivia: Larry David, creator of Seinfeld, is the B-movie actor who yells something Jerry writes down, but later he can't read his own writing.
The Pool Guy - S7-E8
Trivia: When Jerry, Elaine, and Susan are at The Movie "Chunnel", Susan is annoyed while Jerry and Elaine are talking during The Movie. Listen to The Movie dialogue in the background of the scene. The Voice which yells "Everyone out of the chunnel!" is that of co-creator Larry David.
The Masseuse - S5-E9
Trivia: One of the subplots concerned Elaine's new boyfriend, "Joel Rifkin". Within the episode, Elaine wanted her boyfriend to change his name because he shared the same name as the serial killer named Joel Rifkin who had been arrested June '93. She has a conversation with her boyfriend, Joel, and suggests he change his name to the less scary Dion, Ned, Remy and then O.J. The show aired in November, 1993, seven months before football Hall of Famer O.J. Simpson would be tried for the murders of Nicole Brown Simpson and Ron Goldman.
Trivia: Christa Miller, (Kate on The Drew Carey Show and Jordan on Scrubs) guest starred in two different roles on Seinfeld. First, she was Ellen in the episode, "The Sniffing Accountant", in '93 and later Paula, in the episode, "The Doodle" in '95.
The Library - S3-E5
Trivia: Marian the librarian gets her name from the famous play/movie The Music Man, which includes a song called "Marian the Librarian".
Trivia: Co-creator Larry David can be heard as the bystander on the beach who calls out "Is anyone here a Marine Biologist?"
Trivia: In 2001, NBC offered Jerry Seinfeld $5 million per episode for another season. Seinfeld declined.
The Sniffing Accountant - S5-E4
Trivia: The blue jumper in the episode that Jerry wears, and that Kramer also ends up wearing that made people sniff appears in a later Seinfeld episode where George is dating the daughter of a welfare officer. She can be seen wearing it when they are sitting in George's car at one point.
Trivia: Not only was Michael Richards carrying an air conditioner the entire episode, he cut his lip on it as he was putting it into the trunk of the car.
Trivia: The Voice of the car thief who Jerry talks to on the phone is co-creator Larry David.
