Roone Arledge's autobiography is like many egocentric ''how I saved the world'' memoirs. However, as Mohammed Ali opined, 'It ain't braggin' if it's true.'' Roone is packed with true stories about a legendary career that revolutionized TV sports, converted a doormat news division into a supernova and helped transform a woebegone, ''smoke and mirrors'' network into a powerhouse. Arledge's accomplishments are well documented, notably in Marc Gunther's The House That Roone Built and Monday Night Mayhem, but this is the master's voice, the inside scoop, a rare glimpse of genius ''up close and personal'' (a Roone original). Arledge was one...