<Table> <Tr> <Th_colspan="2"> Game of Thrones </Th> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Genre </Th> <Td> <Ul> <Li> Fantasy </Li> <Li> Serial drama </Li> </Ul> </Td> </Tr> <Tr> <Th> Created by </Th> <Td> <Ul> <Li> David Benioff </Li> <Li> D.B. Weiss </Li> </Ul> </Td> </Tr> <Tr> <Th> Based on </Th> <Td> A Song of Ice and Fire by George R.R. Martin </Td> </Tr> <Tr> <Th> Starring </Th> <Td> see List of Game of Thrones characters </Td> </Tr> <Tr> <Th> Theme music composer </Th> <Td> Ramin Djawadi </Td> </Tr> <Tr> <Th> Opening theme </Th> <Td> "Main Title" </Td> </Tr> <Tr> <Th> Composer (s) </Th> <Td> Ramin Djawadi </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> United States </Td> </Tr> <Tr> <Th> Original language (s) </Th> <Td> English </Td> </Tr> <Tr> <Th> No. of seasons </Th> <Td> 7 </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> 67 (list of episodes) </Td> </Tr> <Tr> <Th_colspan="2"> Production </Th> </Tr> <Tr> <Th> Executive producer (s) </Th> <Td> <Ul> <Li> David Benioff </Li> <Li> D.B. Weiss </Li> <Li> Carolyn Strauss </Li> <Li> Frank Doelger </Li> <Li> Bernadette Caulfield </Li> <Li> George R.R. Martin </Li> </Ul> </Td> </Tr> <Tr> <Th> Location (s) </Th> <Td> <Ul> <Li> Northern Ireland </Li> <Li> Croatia </Li> <Li> Iceland </Li> <Li> Spain </Li> <Li> Malta </Li> <Li> Morocco </Li> <Li> Scotland </Li> <Li> Canada </Li> <Li> United States </Li> </Ul> </Td> </Tr> <Tr> <Th> Running time </Th> <Td> 50--80 minutes </Td> </Tr> <Tr> <Th> Production company (s) </Th> <Td> <Ul> <Li> Television 360 </Li> <Li> Grok! Television </Li> <Li> Generator Entertainment </Li> <Li> Startling Television </Li> <Li> Bighead Littlehead </Li> </Ul> </Td> </Tr> <Tr> <Th> Distributor </Th> <Td> Warner Bros. Television Distribution </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> HBO </Td> </Tr> <Tr> <Th> Picture format </Th> <Td> 1080i (16: 9 HDTV) </Td> </Tr> <Tr> <Th> Audio format </Th> <Td> Dolby Digital 5.1 </Td> </Tr> <Tr> <Th> Original release </Th> <Td> April 17, 2011 (2011 - 04 - 17)--present </Td> </Tr> <Tr> <Th_colspan="2"> Chronology </Th> </Tr> <Tr> <Th> Related shows </Th> <Td> After the Thrones Thronecast </Td> </Tr> <Tr> <Th_colspan="2"> External links </Th> </Tr> <Tr> <Th> Website </Th> <Td> www.hbo.com/game-of-thrones </Td> </Tr> <Tr> <Th> Production website </Th> <Td> www.makinggameofthrones.com </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Game of Thrones </Th> </Tr>

When did game of thrones tv show start
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