A series of documentaries where a group of British children from several social backgrounds are followed every 7 years.
I've seen up to 35 up and can't wait for the last two parts. How else can you watch several real lives pass before you? Some aspects of the protagonists lives have relevance to yours in a specific way, all of them in a general way.
Like the films repeatedly say "give me a child when he is seven, and I will give you the man".