Remember Living in the Past? It was the 1970s documentary series in which six families spent a year living in the Iron Age, working, sleeping and eating as their ancestors would have done 2,300 years before. Thirty years on, What Happened Next? catches up with the people who took part. Some still sport neolithic beards, while others nurse ancient grievances - one man describes building a house from mud and wood during the wettest spring of the century as "sheer hell".