Discovered Pages
[Discover] DEP - Formats - CBS Outdoor Alive http://www.cbsoutdoor-alive.co.uk/formats/dep.aspx
(underground dislays tate video) 
[Discover] Digital future for London Underground - Advertising With Alive Technology (VIDEO) http://www.trendhunter.com/trends/london-underground-alive/ (underground dislays tate video)