Seinfeld aired on NBC from 1989 to 1998 and was created by Jerry Seinfeld and Larry David, built around Seinfeld's stand-up routines in New York. Episodes often opened with club sets where he questioned ordinary habits, and his what's the deal phrasing became the show's most quoted catchphrase. The airline food bit is among the most parodied examples. Clips and soundboard rips later circulated online, keeping the line alive as shorthand for mock-bewildered commentary long after the series ended.