Tom Selleck has been on Hollywood’s A-list since bursting onto screens in the TV show “Magnum, P.I.” in the early ‘80s. By the end of that decade, he had reached a whole new level of fame with massive box office hits like “Three Men and a Baby.” More recently, he’s become known for his role as NYPD commissioner Frank Reagan on the hugely successful crime drama series “Blue Bloods.” Now, the actor has released a new memoir called “You Never Know.” He joins Tom Power to talk about his journey in acting, the hurdles he faced, and the lessons he learned on his way to stardom.