Not in the Line of Fire - S3-E15
Revealing mistake: Two thirds of the way into the show, Mike and the mayor are talking in his office. If you look at the Mets hat behind Mike, the NY emblem is upside down.
Not in the Line of Fire - S3-E15
Revealing mistake: When James points out to Carter that Rags is eating his sleeping pills, it's painfully obvious that they are actually dog biscuits. (00:06:15)
The Kidney's All Right - S3-E9
Revealing mistake: When Paul has a flashback to when he was bullied by Butch, it is quite evident that the school is the exact same set as City Hall. (00:09:00)
There's Something About Heidi - S3-E2
Revealing mistake: When we are shown Nicki's dream about Mike where they are supposedly both naked, you can see a skin-color band covering her breasts briefly in the close-up of her fumbling the football. (00:07:50)
Not in the Line of Fire - S3-E15
Revealing mistake: 1/3 through the show, Stuart is talking to Nicki's boyfriend in the cafeteria, and the candy machine has "N&Ns" in it instead of "M&Ms" for both plain and peanut. The letters have been partially covered up.