<Tr> <Th_colspan="2"> Release </Th> </Tr> <Tr> <Th> Original network </Th> <Td> Fox </Td> </Tr> <Tr> <Th> Original release </Th> <Td> May 1, 2005 (2005 - 05 - 01)--May 21, 2006 (2006 - 05 - 21) </Td> </Tr> <Tr> <Th_colspan="2"> Season chronology </Th> </Tr>

When did season 4 of family guy come out