In 1997, after hearing complaints from American viewers that hockey is not a good TV sport because the puck is too small to follow, Fox, who was still broadcasting the NHL at the time, experimented with what it called FoxTrax.  This was Fox’s name for what is more generally known as a glowing puck.  At all times during a game, the puck is highlighted no matter where it is on the ice making it extremely traceable.  Not only was the puck highlighted, but whenever a shot was taken, there would be a streaking red tail and a pop-up at the bottom of the TV screen showing the speed of the shot.  It sounds like a great idea, but this innovation failed because of protests from avid hockey fans.  Before diving deeper into the two sides, take a look at this clip for the 1997 All-Star game: First, to understand how the whole thing works, you need to know the technology behind it.  Here is a cross-section of a FoxTrax puck: To create the FoxTrax puck, a standard NHL puck was cut in half, and a tiny circuit board with a battery was placed inside. The circuit board contained motion detectors and infrared emitters.  These additional enhancements added less than one-hundredth of a gram to the original puck’s mass. The two halves were sealed with epoxy and the puck could be used for game-play. However, the battery only had a 10 minute lifespan, so at least 50 FoxTrax pucks were produced before each game. The puck was activated when it was struck by a hockey stick.During a Fox NHL broadcast, the puck emitted infrared pulses to motion sensors located along the boards of the rink. These sensors were synchronized to the pulses. Next, infrared cameras along the rafters detected these pulses and transmitted their coordinates to a television van outside the arena. The truck contained computers that superimposed computer graphics on the puck coordinates, which could be seen by viewers at home. The visual result was a bluish glow around the puck. Unfortunately, blue does not show up very well against the white