(In 1994, that reference to the line of scrimmage was changed to the kick spot, which is usually 7 yards behind the line of scrimmage.) Notice that the 20-yard line is where the defense takes possession after a touchback.
In 2012 the film Touchback was written and directed by Handfield, starring actors Kurt Russell and Brian Presley.
He was most noted for his booming kickoffs, which often sailed into the end zone for touchbacks; afterwards, he would take a bite of his Snickers bar that he kept in his spare shoe on the sideline.