Think the first computer was a Mac, a PC, or even ENIAC? Guess again: This "Nova" program recounts the discovery of the "world's first computer"...inside a 2,000-year-old shipwreck! Constructed with gears to track lunar and solar eclipses, the Greek device known as the Antikythera mechanism proves to be a marvel of invention and a mystery to researchers who ponder why its cutting-edge technology remained unduplicated for the next 1,000 years. 60 min. Widescreen (Enhanced); Soundtrack: English Dolby Digital stereo; Subtitles: English (SDH).