Character mistake: In this season we see Doug smoking cigars and cigarettes. However in S2 E1 Queasy Rider, Doug is shown to absolutely detest the smell and taste of smoke from these. It is highly unlikely that he would then take up smoking.
The King of Queens (1998)
1 mistake in Season 3 generally
Starring: Kevin James, Jerry Stiller, Leah Remini, Victor Williams
Genres: Comedy
Doug Heffernan: Hey, Deac, let me ask you, do you think Carrie's gained weight?
Deacon Palmer: Say what?
Doug Heffernan: Carrie, my wife, do you think she's gained a little weight, a couple pounds, maybe?
Deacon Palmer: I don't know. Every time I see her she's blocked by you.
Trivia: The house that Doug visits to make a delivery and stays for a while is the same one that is used for the Heffermans' neighbours' house.
Question: Has Carrie's sister, Sara, ever been mentioned again after the first few episodes, and why was she taken off?
Answer: Sara hasn't been mentioned in later episodes, and it suggested in later episodes that she never existed, and that Carrie is an only child. Kevin James stated that the producers couldn't think of an good plots to use with Sara, so they left her out.