Think you know everything there is to know about 'Seinfeld'? Ok, maybe you do, but for the rest of us, TV Guide Channel put together a special called '25 Things You Didn't Know About ... Seinfeld.'

For example, Elaine isn't the only one who can work for J. Peterman. In fact, J. Peterman is a real person with a real catalog that 'Seinfeld' just happened to make famous. And John O'Hurley, who played J. Peterman on the show, actually bought the company a year after Seinfeld ended, bringing it out of bankruptcy to co-own it with J. Peterman himself.