Grabbing the statistic that 25 per cent of adults in the UK are overweight, Steve Miller, author of the delightfully titled 'Get Off Your A-- and Lose Weight', gives some hands-on advice to six supersize families. Shock tactics are the only way forward as some of the chubbies refuse to accept that they can control the problem and blame genetics until Miller shows them the evidence. In tonight's episode, we meet the Cuff family (mother and father weigh in at 33 and 24 stones respectively).