Aren't they doing that at the Holborn escalators?

BTW, I remember that there were advertisements between stations on Berlin's
U-Bahn that worked like a film. As the train passed each frame, it created
for passengers on board the illusion that there was movement in the
advertisement.

Are there any such plans in London or has anything like that been tried in
the past?

"Dave A" wrote in message
...

Not sure when, but it looks like the walls have been set up for it at a
number of stations (i.e. posters removed and walls painted with large
white blocks) - Oxford Circus springs to mind, as part of the ongoing
refurbishment.

--
Dave Arquati
www.alwaystouchout.com - Transport projects in London