In answer to an earlier review about this classic series being lost - in the distant past TV networks regularly 'wiped' tapes so they could be used again to save money. Because of this vandalism many classic shows and indeed entire series were lost forever although occasionally home recordings turn up of varying quality. A case in point is Bob Dylan Live at BBC Studios - his final ever acoustic concert performance broadcast over two half hour episodes in June 1965 but now only available as an off air audio recording after the film/video was wiped. Audio was recorded by a viewer who connected an early tape recorder to a radio and that is the recording which now circulates. If the original film was to be discovered nearly 60 years after the event fans would be overjoyed. A thylacine moment indeed.