<Table> <Tr> <Th_colspan="2"> Sword Art Online </Th> </Tr> <Tr> <Td_colspan="2"> Cover of the first DVD volume released by Aniplex of America . </Td> </Tr> <Tr> <Th> Country of origin </Th> <Td> Japan </Td> </Tr> <Tr> <Th> No. of episodes </Th> <Td> 25 </Td> </Tr> <Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> Tokyo MX </Td> </Tr> <Tr> <Th> Original release </Th> <Td> July 8 (2012 - 07 - 08)--December 23, 2012 (2012 - 12 - 23) </Td> </Tr> <Tr> <Th_colspan="2"> Season chronology </Th> </Tr> <Tr> <Td_colspan="2"> Next → Sword Art Online II </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Sword Art Online </Th> </Tr>

How many episodes are in sao season 1