 For the exterior filming, the Wooburn Grange Country Club in Buckinghamshire was used instead of a hotel.In several episodes of the series (notably "The Kipper and the Corpse", "The Anniversary", and "Basil the Rat"), the entrance gate at the bottom of the drive states the real name of the location.This listed building later served for a short time as a nightclub named "Basil's" after the series ended, before being destroyed by a fire in March 1991.