Keep It Up Downstairs (1976)

The year is 1904. The setting is Cockshute Towers, one of England's stateliest homes. When the household is threatened with bankruptcy, both the masters and the servants are prepared to co-operate in trying to find some cash — after all, most of them are enjoying liasons of one kind or another among themselves, and none have any desire to give up their rewarding way of life. Stars Jack Wild, Mark Singleton and Sue Longhurst. Also with Olivia Munday and Diana Dors.