<Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 9 </Td> <Td_colspan="1"> March 27, 2005 (2005 - 03 - 27) </Td> <Td> May 22, 2005 (2005 - 05 - 22) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 27 </Td> <Td_colspan="1"> September 25, 2005 (2005 - 09 - 25) </Td> <Td> May 15, 2006 (2006 - 05 - 15) </Td> </Tr>

When did the first episode of greys anatomy come out