<Tr> <Th_colspan="2"> Season </Th> <Th> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Th> </Th> <Td> 9 </Td> <Td> March 15, 1977 (1977 - 03 - 15) </Td> <Td> August 10, 1977 (1977 - 08 - 10) </Td> </Tr> <Tr> <Td> </Td> <Th> </Th> <Td> 24 </Td> <Td> September 14, 1977 (1977 - 09 - 14) </Td> <Td> May 10, 1978 (1978 - 05 - 10) </Td> </Tr>

Who was the cast of eight is enough