Vance narrating, 'Forgotten Genius' gathers archival footage and interviews, while Tony winner Ruben Santiago-Hudson stars as Julian in period re-enactments. A special two-hour 'NOVA' tells the story of a man who, despite his tremendous achievements, remains largely unknown after his death a quarter-century ago at age 76.

But as the first black director of an industrial chemistry research lab, he broke the color barrier in American science more than a decade before Jackie Robinson did the same in major league baseball. He was also a black man, the grandson of Alabama slaves who met with countless barriers in a highly segregated nation. Percy Julian won worldwide acclaim for his work in organic chemistry and, after forming his own private lab, became a self-made millionaire. Then, 27 years later, the program came to an abrupt halt when President Nixon declared that 'the United States will renounce the use of any form of deadly biological weapons that either kill or incapacitate.' What happened in those intervening years? A new 'American Experience' documentary, 'The Living Weapon,' offers a look at more than two decades of closed-door meetings, secret tests, determined scientists and human subjects that attempted to turn some of the world's most potent germs into some of the world's most effective weapons.

down a path to develop a new weapon of mass destruction. In 1942, the United States began a highly classified program to research and develop bioweapons, its first in a series of steps that took the U.S. For their musical edition, Webb and Sessler count down the best video-game soundtracks of all time - while joined by the X-Play Dancers in performances of five original songs, including 'The Devil Went Down to X-Play' and 'A Game is Born.' The whole song-and-dance airs 8 p.m. Shades of 'Dreamgirls' and 'Ray'! In the grand tradition of backstage musicals and show-biz biopics, cable's G4 network presents 'X-Play: The Musical.' Billed as the most expensive musical about video games in the history of mass entertainment, this cast-of-dozens extravaganza offers a fresh twist on the network's 'X-Play,' which for three years has reviewed and explored video games through the eyes of co-hosts Morgan Webb and Adam Sessler.

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