I must say after seeing that video... I’m awed, humbled... and a little afraid.
When I first heard about the displays, I figured they were using something not unlike a Sencore
HDTV996A or
VP3340 (two products I built), both of which play an MPEG-2 transport stream (not unlike what you would pick up over the air) and either modulates it to an RF channel (exactly like what is broadcast OTA in the US) or decodes it and provides an HD DVI or RGB output.
These things are often used for in store advertising and information as well as pre film advertising at movie theaters... Everything that they put out is pre-recorded and schedulable... and seeing the level of detail and dynamic display is... mind boggling and makes me wonder just how far people are going to want to take displays like those shown here and how soon my bosses or one of our customers is going to want something like that built.