IBM PC from 1981 hacked to play full-motion video

A reader writes, "First released on August 12th, 1981, the IBM Model 5150 was the world's first PC. It came with a host of business and productivity tools, but only CGA graphics. Fortunately, a modder hacked one of these 4.77MHz wonders (640K RAM + 10MB HDD) to play full motion color video, running at 30fps."