Apparently the network began to air the show in high-definition in season seven, because seasons seven through nine are presented in 1.

Supervisor Patrick O'Boyle (played by Sam McMurray) (seasons 3–9) is section supervisor for the fictional International Parcel Service. I think this show is underrated and looked down upon by some people because it deals with working class people and issues.

He was quietly written out of the show in season three so Romano could work on another sitcom ( Kristin). A running gag on the series is that the neighbors (including the Heffernans) are fascinated by him, and it gets on his nerves. Spence demonstrates intelligence and competence in a variety of pursuits, but he is haunted by his family history, his intimidating and troubled mother, and his inability to protect himself. Maryann Johnson of Flick Filospher critiqued, "Obvious and distasteful, The King of Queens relies too heavily on class and gender stereotypes to elicit laughs in the same way that one pulls teeth". The King of Queens consistently delivered laughs for nine seasons, making it one of the most popular and longest-running comedies in television history!

Unlike Seinfeld, which ended while still at the peak of its popularity, The King of Queens almost did not have a ninth season. are of satisfactory stability, offering good fundamental tones and balance with no evidence of severe fade or excess contrast. He tends to be angst-ridden, sickly, and takes an interest in science fiction, fantasy movies, and comic book conventions—interests that his friends do not share. We take intellectual property concerns very seriously, but many of these problems can be resolved directly by the parties involved.

In the season two sequence, Kevin James' starring credit was placed over a shot of the Brooklyn Bridge with the Manhattan skyline, but was edited after the September 11 attacks that felled the World Trade Center. The series was nearly cancelled by CBS after season eight, and the network commissioned only thirteen episodes (including the hour-long finale) for the final season. An instrumental version was used as the closing theme during season 2, but was replaced in season 3 with a new closing theme composed by Kurt Farquhar. Holly Shumpert (played by Nicole Sullivan) (guest season 3; main cast seasons 5–7, recurring season 4, 8–9) is a polite yet timid dog-walker who, like the Heffernans, lives in Queens, where she was hired by Doug and Carrie to "walk" Arthur.