<Table> <Tr> <Th_colspan="2"> Derek </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Genre </Th> <Td> <Ul> <Li> Mockumentary </Li> <Li> Comedy - drama </Li> </Ul> </Td> </Tr> <Tr> <Th> Created by </Th> <Td> Ricky Gervais </Td> </Tr> <Tr> <Th> Written by </Th> <Td> Ricky Gervais </Td> </Tr> <Tr> <Th> Directed by </Th> <Td> Ricky Gervais </Td> </Tr> <Tr> <Th> Starring </Th> <Td> <Ul> <Li> Ricky Gervais </Li> <Li> Kerry Godliman </Li> <Li> David Earl </Li> <Li> Karl Pilkington </Li> </Ul> </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> 14 (list of episodes) </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Executive producer (s) </Th> <Td> Ricky Gervais </Td> </Tr> <Tr> <Th> Producer (s) </Th> <Td> Charlie Hanson </Td> </Tr> <Tr> <Th> Cinematography </Th> <Td> Martin Hawkins </Td> </Tr> <Tr> <Th> Editor (s) </Th> <Td> Valerio Bonelli </Td> </Tr> <Tr> <Th> Running time </Th> <Td> 24 mins </Td> </Tr> <Tr> <Th> Production company (s) </Th> <Td> Derek Productions Ltd . </Td> </Tr> <Tr> <Th> Distributor </Th> <Td> Passion Distribution </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> Channel 4 </Td> </Tr> <Tr> <Th> Picture format </Th> <Td> 1080i (HDTV) </Td> </Tr> <Tr> <Th> Audio format </Th> <Td> Stereo </Td> </Tr> <Tr> <Th> Original release </Th> <Td> 12 April 2012 (2012 - 04 - 12)--22 December 2014 (2014 - 12 - 22) </Td> </Tr> <Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Td_colspan="2"> Website </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Derek </Th> </Tr>

How many series of derek have there been
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