In message , at 11:05:26 on
Sun, 28 Nov 2010, Neil Williams
remarked:
That's a display convention used all over the country.

Except Milton Keynes, apparently. Another reason why it's a broken
waste of money.

What's different about Milton Keynes - the only variation that would
qualify as broken is a countdown based on the timetable rather than
actual running.
--
Roland Perry