From Jeff Schwartz e-book on Ayler:
The group's appearance on British TV had seemed jinxed from the start, as problems with their accommodations had forced the musicians to wander the streets of London, where they could not be reached by the anxious producers. When the two half-hour programs were recorded, the music contained an absolute minimum of improvisation. Even a purely thematic recital must have been too much for 1966 England. Shocked programming executives ordered it destroyed, though bootleg audio (and possibly video) copies of this continuous half-hour piece may exist.
No traces of the images and the sounds (a BBC broadcast) seem to have surfaced yet!