What was the first practical use of AR?
There’s a strong argument that the first piece of AR in live television was the yellow ‘must reach here’ line in American Football. With four goes to move the ball at least ten years, the yellow line on the screen showed where the ball had to reach… even if the camera was moving, and of course it couldn’t obscure the players. A digital line, on the ground, and everyone able to stand on top of it. Sports Illustrated looks at the line: Everything started with a simple yellow line. On September 27, 1998, Sportvision debuted its yellow first down marker





