Andy and David were senior audio supervisors. Andy worked in TV and radio, some of his many TV credits can be seen at http://www.imdb.com/name/nm2529400/ . David’s main area of work was as a dubbing mixer. In 1982 he won a BAFTA award for his work on Boys From The Blackstuff. Later on he became a film/psc sound recordist. His credits can be seen on http://www.imdb.com/name/nm0062266/ .
Peter Poole
(please add a comment if you can identify the programme and the location)