The CBS police procedural show "Blue Bloods" is currently in its 13th season and approaching 300 episodes, showing its enduring popularity with audiences. The show's focus on family sets it apart from others in its genre, with the Reagan family working together in law enforcement. Despite having many episodes, there are still plenty of storylines to explore. Donnie Wahlberg, who plays Danny Reagan, recently suggested the idea of his wife, Jenny McCarthy, making a cameo on the show, but acknowledges that her commitments to another show make it unlikely.