Little quick challenge to clog up the boards amid the list fury. Probably very obvious and bound to have me kicking myself, but it's been gnawing away at me for about seven hours no with no breakthrough. Do help.

18:07, behind the intro to the lovely bit of performance art in Edinburgh.
http://www.bbc.co.uk/iplayer/episode/b01p8k04/The_Culture_Show_2012_2013_Episode_22/