<Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Td_colspan="2"> Website </Td> </Tr> <P> Blue Bloods is an American police procedural fictional drama series that airs on CBS . The series is filmed on location in New York City with occasional references to nearby suburbs . The series debuted on September 24, 2010, with episodes airing on Fridays following CSI: NY before being moved to Wednesdays at 10: 00 p.m. Eastern and Pacific time and 9: 00 p.m. Central and Mountain time for a four - week tryout . After four weeks, it returned to its original Friday 10: 00 p.m. Eastern time slot, where it has remained since . On April 18, 2018, CBS renewed the series for a ninth season which is set to premiere on September 28, 2018 . </P> <P> The series follows the Reagan family of police officers with the New York City Police Department (NYPD). Francis Xavier "Frank" Reagan is the Police Commissioner . Frank's second oldest son Danny is an NYPD detective, his youngest son Jamie is an NYPD police officer, and his daughter is an assistant district attorney . Frank's oldest son Joe was murdered by a crooked cop in the line of duty in events that pre-date the series, when he was involved with the Federal Bureau of Investigation (FBI) investigating a group of corrupt NYPD cops . Frank's father is a former NYPD beat cop who rose through the ranks to Police Commissioner . Each member of the family represents a different aspect of police work or the legal process: Frank as the commissioner, Danny as the detective, Jamie as the beat cop and Erin as the prosecutor . Additionally, while each person's story might occasionally interweave with another's, the show also follows the professional (and, at least once in a while, personal) relationships with their respective partners and colleagues . Frank with Garrett Moore, the NYPD Deputy Commissioner of Public Information and de facto Chief of Staff, Detective 1st Grade Abigail Baker, the Primary Aide to the Commissioner, and later Lieutenant Sidney Gormley, the Special Assistant to the Commissioner and de facto Chief of Department; Danny with Detective Maria Baez; Jamie with Officer Edit "Eddie" Janko; and Erin with Detective Anthony Abbatemarco in the DA's office . </P>

How long has the show blue bloods been on tv