7.20/10 2012-07-24 30 minutes.HDWith time ticking inexorably downwards the marketing team come up with a major public event to mark the 1,000 days to go milestone. A huge clock designed by a contemporary British artist. The only problem is that the clock has a potentially disastrous design flaw which no-one seems to have noticed.An: 2012Studio: BBC Four, BBC TwoPays: United Kingdom