On Wed, 5 Jan 2011 16:55:25 -0800 (PST)
MIG wrote:
But if the display was wrong, say, 10% of the time (not saying it is),
it would actually be 100% useless, wouldn't it?

Quite. If you have to check the destination indicators on the train anyway
there's little point having the platform ones except for a countdown until
the next train.

B2003