Jamie Oliver's Food Revolution.
You can watch it online (I finally took our TV out to the curb last weekend). I have been a long time fan of Jamie Oliver - ever since his Naked Chef days. But I really started to believe in what he was doing - not only as a great chef but as someone who cares about changing the way people eat and, therefore, live - when he revamped England's school lunch program.
It's a movement I whole-heartedly believe in. Obesity is taking over America. This generation is going to have a shorter life span than their parents if we don't change things soon. So, I recommend this show to everyone - especially those who have kids (I read a blog where a parent got his kids out of bed at night to watch the show with him because he thought it was so important for them to see it).