Blue Bloods, a cop show, has interesting behind-the-scenes tidbits. Real-life siblings Tony and Andrew Terraciano play brothers on-screen. Tom Selleck’s mustache almost got axed in the first season but stayed due to its iconic status.

Family dinner scenes were challenging, taking up to five hours to film. Tricks like Donnie Wahlberg napping on set were used to avoid eating prop food. The flatware used was fake to minimize noise.

Amy Carlson’s abrupt exit as Linda Reagan surprised fans, and Jennifer Esposito was fired due to health issues, replaced by Megan Boone. The show nearly moved to Toronto early on due to tax rebate issues but stayed in New York after negotiations.

Creators Mitchell Burgess and Robin Green were let go after the first season, and the show faced criticism for a controversial portrayal of the Catholic Church.

In essence, Blue Bloods has had family connections, creative clashes, and controversies behind the scenes.