Property programme in which Kristian Digby shows sellers how to get ahead of the competition by launching their homes on the market through a one-off open day. Committed environmentalists Tim Robinson and Joanne Bowlt spent two years converting their 1970s north Oxford flat into an eco-friendly paradise. But with the arrival of baby Benjamin, the time has come to move on to the next big eco project. Can Kristian help them find the ideal green buyer for their flat?