On March 27, 2002, the special non-fiction episode "In Their Own Words" which told the real stories of the police officers, firefighters, paramedics, emergency services personnel, and their families in the aftermath of 9/11/01, received the prestigious George Foster Peabody Award for Excellence in Broadcasting.
The series is called 'Third Watch' because it focuses on the exploits of a group of police officers, firefighters, and paramedics in the fictional 55th Precinct and Fire Station 55 whose shifts fall between 3pm and 11pm - the "third watch."
In many episodes there are I Heart New York logos "hidden" on all sorts of items such as mugs and shopping bags, e.g. when Faith is taking the Sergeant exam, she is wearing a t-shirt that says it under her coat.
The trivia item below may give away important plot points.
In the ninth episode of the first season of NBC's series Shades of Blue (2016), Ray Liotta's character is making a phone call on a semitary. On this semitary you can see the tombstone of Maritza Cruz, a character on Third Watch. This character was killed on the series finale of Third Watch in 2005, where they also showed the tombstone in the final minutes of this episode.