As UK based independent television producers continue to find themselves the targets of mergers and acquisitions, the metric with which their success is judged becomes ever more important. Production companies have tended to be assessed by the size of their turnover and profits. O&O has developed an alternative, a five part scorecard for all leading UK production groups measuring: refreshment, stickiness, longevity, stability and transferability. These yield a very different ranking from those based on turnover and profitability. Can you guess which production group comes top?