Tomorrow's Horizon follows a group of people who are deprived of
various senses over a 48-hour period. This is apparently filmed in a
nuclear bunker. . The interior looks quite modern and a from brief
glimpse of the outside on the website,
http://www.bbc.co.uk/sn/tvradio/programmes/horizon/broadband/tx/isolation/highlights/,
it doesn't appear to be the usual suspects, Kelvedon Hatch, Anstruther
or Hack Green. I wonder if it could be Cambridge being used again?

Neill