In message , at 15:00:24 on Thu, 23
Jan 2020, Robin9 remarked:

That must be a fairly recent development. I never seen that
and I visit Kings Cross every few weeks. Obviously this will be
helpful for passengers needing to decide from which station
the next train will depart.

What they really need is to know is from which station the train that
gets them soonest to their destination departs.

Have they yet got signage like that for passengers heading for
Luton/Bedford to choose between the STP-MML upper platforms and
Thameslink-SPILL?
--
Roland Perry