<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (December 2009) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (December 2009) (Learn how and when to remove this template message) </Td> </Tr> <Table> <Tr> <Th_colspan="2"> The Duchess of Duke Street </Th> </Tr> <Tr> <Th> Genre </Th> <Td> Drama </Td> </Tr> <Tr> <Th> Created by </Th> <Td> John Hawkesworth </Td> </Tr> <Tr> <Th> Starring </Th> <Td> Gemma Jones Christopher Cazenove Victoria Plucknett John Cater John Welsh Richard Vernon </Td> </Tr> <Tr> <Th> Theme music composer </Th> <Td> Alexander Faris </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United Kingdom </Td> </Tr> <Tr> <Th> No. of series </Th> <Td> </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> 31 </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Running time </Th> <Td> 50 minutes </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> BBC1 </Td> </Tr> <Tr> <Th> Original release </Th> <Td> 4 September 1976--24 December 1977 </Td> </Tr> </Table> <Tr> <Th_colspan="2"> The Duchess of Duke Street </Th> </Tr>

When was the duchess of duke street first shown