I've been watching some great shows on PBS, (they are on youtube, too)
The wartime kitchen and garden
The wartime farm
They are a series about WWII victory gardens and there are some recipes and cooking techniques..I really like them. Along that same vein is a series called Landgirls...also about wartime gardens and the women billeted onto estates to grow food, but it's not a documentary, it's got more of a soap opera feel, but still ok.
I never realized how many shows and movies there are on youtube, once you start watching they get addictive. I am a history buff, so I enjoy that genre.