Wired News has an article about NBC’s Simulcam technology, which is used to superimpose two competitors into one video feed. It’s been used to compare jumps between figure skaters, and has been used to compare the runs by downhill skiers. The Simulcam stuff completely revolutionizes coverage of skiing, without it, it’s difficult to tell why one skier finishes a bit slower than another. With the Simulcam, it becomes perfectly clear. It’s so useful that the ski teams themselves are using it as a training aid.