Muhammad Ali - What2Watch

Filmmaker Ken Burns explores the life and career of one of the most consequential men of the 20th century in this four-part docuseries, which airs nightly through Wednesday. In development for six years, the series remembers the three-time heavyweight boxing champion who captivated millions of fans with his skills inside the ring, as well as his immense personal charm. In tonight's premiere, "Round One: The Greatest (1942-1964)," the man born as Cassius Clay rises from the amateur ranks to win gold at the 1960 Olympics and become a heavyweight contender.