They should maybe make the puck bright flashing pink so that it can be seen.

Fox (or some network) tried an experiment where using a special puck and sensors around the arena, on your TV screen the puck was surrounded by a blue glow. It even let you see where the puck was along the near-side boards (usually impossible due to the camera angle). I thought it was a great innovation, but the whinging of purists combined with the $400/puck price tag brought about its quick demise.