Tom Selleck believes that the success of the CBS show "Blue Bloods" is due to its focus on the relationships between the characters. The show, which follows the Irish-Catholic Reagan family of law enforcement agents, revolves around the personal and professional lives of the family members. The audience is invested in the characters and their dynamics, often anticipating conflicts and resolutions during family dinners. Selleck believes that the audience's desire for the Reagans' happiness is what keeps them engaged with the show.
