This was the last sitcom to be recorded at LWT's studio complex at Wembley (where 'On The Buses' was also shot). Following the completion of the series, staff and technicians decamped to LWT's new state-of-the-art facility on the South Bank (later known as 'The London Studios') which closed in 2018.
The original Broadway production of "Don't Drink the Water" opened at the Morosco Theater on November 17, 1966 and ran for 598 performances.