<Table> <Tr> <Th colspan="2"> Season </Th> <Th colspan="2"> Episodes </Th> <Th colspan="2"> Originally aired </Th> <Th colspan="2"> Nielsen ratings </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> <Th> Rank </Th> <Th> Rating </Th> </Tr> <Tr> <Td> </Td> <Td colspan="3"> Pilot </Td> <Td colspan="2"> December 19 , 1971 ( 1971 - 12 - 19 ) </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 25 </Td> <Td colspan="1"> September 14 , 1972 ( 1972 - 09 - 14 ) </Td> <Td> April 19 , 1973 ( 1973 - 04 - 19 ) </Td> <Td> 19 </Td> <Td> 20.6 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 25 </Td> <Td colspan="1"> September 13 , 1973 ( 1973 - 09 - 13 ) </Td> <Td> March 14 , 1974 ( 1974 - 03 - 14 ) </Td> <Td> </Td> <Td> 28.1 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 25 </Td> <Td colspan="1"> September 12 , 1974 ( 1974 - 09 - 12 ) </Td> <Td> March 6 , 1975 ( 1975 - 03 - 06 ) </Td> <Td> 8 </Td> <Td> 25.5 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 25 </Td> <Td colspan="1"> September 11 , 1975 ( 1975 - 09 - 11 ) </Td> <Td> March 4 , 1976 ( 1976 - 03 - 04 ) </Td> <Td> 14 </Td> <Td> 22.9 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 5 </Td> <Td colspan="2"> 25 </Td> <Td colspan="1"> September 23 , 1976 ( 1976 - 09 - 23 ) </Td> <Td> March 17 , 1977 ( 1977 - 03 - 17 ) </Td> <Td> 15 </Td> <Td> 22.3 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 6 </Td> <Td colspan="2"> 26 </Td> <Td colspan="1"> September 15 , 1977 ( 1977 - 09 - 15 ) </Td> <Td> March 30 , 1978 ( 1978 - 03 - 30 ) </Td> <Td> 20 </Td> <Td> 20.8 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 7 </Td> <Td colspan="2"> 24 </Td> <Td colspan="1"> September 21 , 1978 ( 1978 - 09 - 21 ) </Td> <Td> March 22 , 1979 ( 1979 - 03 - 22 ) </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 8 </Td> <Td colspan="2"> 24 </Td> <Td colspan="1"> September 20 , 1979 ( 1979 - 09 - 20 ) </Td> <Td> March 13 , 1980 ( 1980 - 03 - 13 ) </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 9 </Td> <Td colspan="2"> 22 </Td> <Td colspan="1"> November 27 , 1980 ( 1980 - 11 - 27 ) </Td> <Td> June 4 , 1981 ( 1981 - 06 - 04 ) </Td> <Td> 30 </Td> <Td> 18.6 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> Movies </Td> <Td colspan="2"> 6 </Td> <Td colspan="1"> February 22 , 1982 ( 1982 - 02 - 22 ) </Td> <Td> April 27 , 1997 ( 1997 - 04 - 27 ) </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> </Table>
<Table> <Tr> <Th colspan="2"> Season </Th> <Th colspan="2"> Episodes </Th> <Th colspan="2"> Originally aired </Th> <Th colspan="2"> Nielsen ratings </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> <Th> Rank </Th> <Th> Rating </Th> </Tr> <Tr> <Td> </Td> <Td colspan="3"> Pilot </Td> <Td colspan="2"> December 19 , 1971 ( 1971 - 12 - 19 ) </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 25 </Td> <Td colspan="1"> September 14 , 1972 ( 1972 - 09 - 14 ) </Td> <Td> April 19 , 1973 ( 1973 - 04 - 19 ) </Td> <Td> 19 </Td> <Td> 20.6 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 25 </Td> <Td colspan="1"> September 13 , 1973 ( 1973 - 09 - 13 ) </Td> <Td> March 14 , 1974 ( 1974 - 03 - 14 ) </Td> <Td> </Td> <Td> 28.1 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 25 </Td> <Td colspan="1"> September 12 , 1974 ( 1974 - 09 - 12 ) </Td> <Td> March 6 , 1975 ( 1975 - 03 - 06 ) </Td> <Td> 8 </Td> <Td> 25.5 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> </Td> <Td colspan="2"> 25 </Td> <Td colspan="1"> September 11 , 1975 ( 1975 - 09 - 11 ) </Td> <Td> March 4 , 1976 ( 1976 - 03 - 04 ) </Td> <Td> 14 </Td> <Td> 22.9 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 5 </Td> <Td colspan="2"> 25 </Td> <Td colspan="1"> September 23 , 1976 ( 1976 - 09 - 23 ) </Td> <Td> March 17 , 1977 ( 1977 - 03 - 17 ) </Td> <Td> 15 </Td> <Td> 22.3 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 6 </Td> <Td colspan="2"> 26 </Td> <Td colspan="1"> September 15 , 1977 ( 1977 - 09 - 15 ) </Td> <Td> March 30 , 1978 ( 1978 - 03 - 30 ) </Td> <Td> 20 </Td> <Td> 20.8 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 7 </Td> <Td colspan="2"> 24 </Td> <Td colspan="1"> September 21 , 1978 ( 1978 - 09 - 21 ) </Td> <Td> March 22 , 1979 ( 1979 - 03 - 22 ) </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 8 </Td> <Td colspan="2"> 24 </Td> <Td colspan="1"> September 20 , 1979 ( 1979 - 09 - 20 ) </Td> <Td> March 13 , 1980 ( 1980 - 03 - 13 ) </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> 9 </Td> <Td colspan="2"> 22 </Td> <Td colspan="1"> November 27 , 1980 ( 1980 - 11 - 27 ) </Td> <Td> June 4 , 1981 ( 1981 - 06 - 04 ) </Td> <Td> 30 </Td> <Td> 18.6 </Td> </Tr> <Tr> <Td> </Td> <Td colspan="1"> Movies </Td> <Td colspan="2"> 6 </Td> <Td colspan="1"> February 22 , 1982 ( 1982 - 02 - 22 ) </Td> <Td> April 27 , 1997 ( 1997 - 04 - 27 ) </Td> <Td> N / A </Td> <Td> N / A </Td> </Tr> </Table>
how many season of the waltons are there
how many season of the waltons are there
9
9