While searching for this years lineup for said event I came across these 2 videos of Underworld performing last year. Click on following link please :-
http://www.escapefestival.com
Then click on the media tab, there are 4 videos, 2 are of Underworld, can be downloaded using realplayer.
Brought back some good memories for me was pretty mashed by the time they came on!
Actually after watching some of it, it is NOT from Escape in the Park!!! Cool video though.............