Many years ago at the old Gettysburg visitor center I was waiting in the car while my girl friend went into the bookstore to buy something before our long drive home .A couple , along with a licensed battlefield guide , came out of the center and headed towards the car parked next to me . As they approached the wife said to the guide in a somewhat confused manner "I saw something about Gettysburg on PBS , but that was about the Civil War." After a short pause the guide responded "This IS about the Civil War." I figured the guide had a very long next few hours ahead .