FoxTrax, also referred to as the glowing puck, is an augmented reality system that was used by Fox Sports' telecasts of the National Hockey League (NHL) from 1996 to 1998. The system was intended to help television viewers visually follow a hockey puck on the ice, especially near the bottom of the rink where the traditional center ice camera was unable to see it due to the sideboards obstructing the puck's location. The system used modified hockey pucks containing shock sensors and infrared emitters, which were then read by sensors and computer systems to generate on-screen graphics, such as a blue "glow" around the puck, and other enhancements such as trails to indicate the hardness and speed of shots. The system was first used during the 1996 NHL All-Star Game, and was used until the end of the 1997–98 season. FoxTrax received mixed reviews from viewers and critics; although some viewers thought that FoxTrax helped them follow the game more easily, the concept was criticized (especially by Canadian critics) for being a gimmick that distracted from the game. History In 1994, Fox won a contract to broadcast NHL games in the United States. David Hill, the head of Fox Sports at the time, believed that if viewers could easily follow the puck, the game would seem less confusing to newcomers, and hence become more appealing to a broader audience. Hill pitched the idea to Rupert Murdoch, who approved the development of FoxTrax under electrical engineer Stan Honey. The FoxTrax puck was first used during the 1996 NHL All-Star Game. It was last used during the first game of the 1998 Stanley Cup Finals. Fox was scheduled to televise Games 5 and 7, but the series ended in four games. In August 1998, the NHL broadcast rights went to ABC, and FoxTrax was not brought back for the final season. Fox has since used "FoxTrax" as a branding for other on-screen tracking graphics in other sports properties, such as a virtual strike zone during baseball games, and statistics displays during NASCAR events. They are related to the puck in name only. Construction and operation The technology was co-developed with Etak; the system utilized a modified hockey puck, cut in half to embed an array of infrared emitters, a shock sensor, and an embedded circuit board and battery. The halves of the puck were then bound back together using an epoxy. The