<Table> <Tr> <Th_colspan="2"> Happy Valley </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Genre </Th> <Td> Crime drama </Td> </Tr> <Tr> <Th> Created by </Th> <Td> Sally Wainwright </Td> </Tr> <Tr> <Th> Written by </Th> <Td> Sally Wainwright </Td> </Tr> <Tr> <Th> Directed by </Th> <Td> <Ul> <Li> Sally Wainwright </Li> <Li> Euros Lyn </Li> <Li> Tim Fywell </Li> <Li> Neasa Hardiman </Li> </Ul> </Td> </Tr> <Tr> <Th> Starring </Th> <Td> <Ul> <Li> Sarah Lancashire </Li> <Li> Steve Pemberton </Li> <Li> Siobhan Finneran </Li> <Li> George Costigan </Li> <Li> Joe Armstrong </Li> <Li> James Norton </Li> <Li> Adam Long </Li> <Li> Charlie Murphy </Li> <Li> Karl Davies </Li> <Li> Kevin Doyle </Li> <Li> Robert Emms </Li> <Li> Vincent Franklin </Li> <Li> Shirley Henderson </Li> <Li> Julie Hesmondhalgh </Li> <Li> Katherine Kelly </Li> <Li> Matthew Lewis </Li> <Li> Susan Lynch </Li> <Li> Con O'Neill </Li> <Li> Rick Warden </Li> </Ul> </Td> </Tr> <Tr> <Th> Opening theme </Th> <Td> Trouble Town </Td> </Tr> <Tr> <Th> Ending theme </Th> <Td> Trouble Town </Td> </Tr> <Tr> <Th> Composer (s) </Th> <Td> Ben Foster </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United Kingdom </Td> </Tr> <Tr> <Th> Original language (s) </Th> <Td> English </Td> </Tr> <Tr> <Th> No. of series </Th> <Td> </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> 12 (list of episodes) </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Executive producer (s) </Th> <Td> <Ul> <Li> Nicola Shindler </Li> <Li> Sally Wainwright </Li> <Li> Matthew Read </Li> </Ul> </Td> </Tr> <Tr> <Th> Producer (s) </Th> <Td> <Ul> <Li> Karen Lewis (series 1) </Li> <Li> Juliet Charlesworth (series 2) </Li> </Ul> </Td> </Tr> <Tr> <Th> Location (s) </Th> <Td> Calder Valley (Hebden Bridge, Sowerby Bridge, Mytholmroyd, Heptonstall, Todmorden) </Td> </Tr> <Tr> <Th> Running time </Th> <Td> 60 minutes </Td> </Tr> <Tr> <Th> Production company (s) </Th> <Td> Red Production Company </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> <Ul> <Li> BBC One </Li> <Li> BBC One HD </Li> </Ul> </Td> </Tr> <Tr> <Th> Picture format </Th> <Td> 16: 9 1080i </Td> </Tr> <Tr> <Th> Original release </Th> <Td> 29 April 2014 (2014 - 04 - 29)--present </Td> </Tr> <Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Td_colspan="2"> Website </Td> </Tr> <Tr> <Td_colspan="2"> Production website </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Happy Valley </Th> </Tr>

How many series of happy valley are there
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