"The Royal Train" is the third episode of the sixth series of the British comedy series Dad's Army. It was originally transmitted on 14 November 1973, the day of the wedding of Princess Anne and Mark Phillips.
The Home Guard meet what they believe is the Royal Train.
Walmington-on-Sea is a fictional seaside resort that is the setting of Dad's Army during the Second World War, including the BBC Television sitcom (1968-1977), the BBC Radio 4 series and two feature films.
Brandon railway station stood in for the station at Walmington-on-Sea
The Guildhall at Thetford became Walmington-on Sea's Town Hall
Several episodes were filmed at Nether Row in Thetford
Filming of The Deadly Attachment took place on Mill Lane in Thetford