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 premiered on September 28, 2018.