As the first British interviewer to host a prime-time U.S. talk show in almost 40 years (David Frost was the last one), Piers Morgan had an estimated 2 million viewers passing judgment on the debut of his reign as The Man Who Replaced Larry King. The British journalist and former judge on NBC's America's Got Talent has taken his talents to CNN, where he is filling King's slot with Piers Morgan Tonight. Describing himself as the anti-King, Morgan has promised audiences that his interviews will be high-energy and unpredictable. After opening with talk-show queen Oprah Winfrey, his future guests will include Donald Trump, George Clooney ... and possibly the King himself.