The "code" referred to in the History Channel's Da Vinci and the Code He Lived By has nothing to do with theories about the High Renaissance master's involvement with secret societies (as explored in Dan Brown's bestselling novel The Da Vinci Code). Instead, it refers to Da Vinci's implacable work ethic, his insatiable curiosity and the talent and discipline required to keep his busy mind satisfied. Da Vinci reminds us that the great engineer, inventor, and painter was born illegitimate and was not entitled to use his father's name, let alone the latter's financial resources or reputation within Florence. A long stint as student in a respected studio earned Da Vinci his first renown during a treacherous time in Florence. He was denounced as a sodomist by an unknown enemy; fortunately, the charges were dropped. Da Vinci went on to find patronage for his art, if not for the engineering marvels and weapons designs that (few know today) so preoccupied him. This History Channel documentary explores every major chapter in Da Vinci's life, including his patronage by the bloodthirsty Cesare Borgia, his passion for studying human anatomy (and the legacy his research left to scientists), and his certainty that one day human beings would fly. As for the Mona Lisa and The Last Supper, sure: Such masterpieces are discussed at length. But they're not dissected for hidden meanings. --Tom Keogh