'Ephemera' is apparently a video, allegedly viewable online, of a 8min short film, projected onto the facade of WKLB.

It sounds kinda interesting:
"The striking images in Ephemera were achieved using a data projector to physically project filmed interviews onto the building fabric of West Kennet long barrow, part of the ancient Avebury complex in Wiltshire, UK. The result was a unique tactile fusion between Neolithic stone and modern digital technology"

Mike Pitts, Julian Richards and Francis Pryor discussing the role of TV archaeology.

I couldn't get the effer to play on this machine. Pah!