I suspect the programme you are referring to was actually the excellent All Our Yesterdays (The World At War didn't come on until 1973).
It was Brian Inglis and All Our Yesterdays that woke me to the reality of war. We would watch it every week (I think on a Sunday) and I used to think how lucky we were to be living in an age when such things couldn't happen anymore. I still remember the day when I asked my parents what was stopping world wars happening again? Even as the question left my lips the shocking reality hit me: nothing. I was probably about 7 or 8 years old, it haunted me for weeks afterwards.
