Dave Newt wrote:

I think it was Rue Montmartre (now Grands Boulevards) metro stop that

had, in about 2000, TV screens hanging down along the platform
showing
news, weather, ads, film clips etc.

Thinking about it, I remember now on the Madrid metro in 2002 they had
something similar at a couple of stations (at least) - weather was the
one thing that I found useful.