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Quotes
Elaine: Maybe there's more to Newman than meets the eye.
Jerry: No. There's not. There's less.
Elaine: Well, maybe there is and we just don't know it.
Jerry: No, trust me. I've looked into his eyes. He's pure evil.
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. See more...
Seinfeld (1990) - 3 mistakes in "The Dog"
starring Jason Alexander, Jerry Seinfeld, Julia Louis-Dreyfus, Michael Richards (add more)
Updates: 
Series 9