42 years ago, Michael Apted began filming a group of seven year-olds plucked from the extremes of the British class system. Since then, he's followed their lives with a new film every seven years. What began as a one-off BBC program has become one of the most important histories on film, and a prototype for our reality-TV culture. On the occasion of 49Up's opening this weekend, Apted speaks to Bob about the series. Complete transcript here. (Radio show - "On the Media") When you are at the transcript you can click on "Listen Now" and hear the story as well as read it.