I have and watched the legendary 22-part BBC documentary on WWI. It is ironic that it took me over 15 years to get rid of the trauma I had from high school against history after suffering so many bad teachers. Nowadays I love the subject and read quite a lot on history.
I will add it to my 'To Read' list, but need to warn you that my next few months will be dedicated to Brazilian literature. Right now I am about 1/4 through the works of Machado de Assis.
"Tactics are the bricks and sticks that make up a game, but positional play is the architectural blueprint."