Of course, Mrs Olliff-Cooper wasn't on her hands and knees scrubbing floors as a housemaid in the Upstairs, Downstairs-type experiment - she and her husband John, a 56-year-old businessman, and two sons, Jonty, 18, and Guy, 10, all took part in the programme as the upper-class family living in Manderston, a Scottish Borders home built in 1905.