On 1 Nov, 22:30, Paul Corfield wrote:

Cross (X) Track Projection. *The great big monitor things hanging from
the ceilings that project on to blank advert panels on the trackside
walls. *They're at various Central London locations.

Colossal, brand new tellies that were out-of-date even before they
were put in. Pubs got rid of that technology ten years ago.