"Roland Perry" wrote in message

In message . uk, at
20:09:00 on Mon, 14 Jul 2008, Colin Rosenstiel
remarked:
Front of train will show Heathrow 123 & 5

Hopefully

What else might it show? Plain "Heathrow"?

Heathrow 4 & 123, which misses out T5 where the OP was trying to get.

In some stations, the platform indicators still just say "Heathrow", so
you do need to look at the train itself.