When this first debuted, my grandfather (born in 1917) thought that they had a piece of nylon material that was connected between the first down markers on the

When this first debuted, my grandfather (born in 1917) thought that they had a piece of nylon material that was connected between the first down markers on the sidelines. That's when you know a technology is good. It's so seamless that it never occurs to a layman that it might even be possible.