<Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> <Th_colspan="3"> Nielsen ratings </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> <Th> Rank </Th> <Th> Rating </Th> <Th> Tied with </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 14 </Td> <Td_colspan="1"> January 14, 1972 (1972 - 01 - 14) </Td> <Td> April 14, 1972 (1972 - 04 - 14) </Td> <Td> 6 </Td> <Td> 25.2 </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 24 </Td> <Td_colspan="1"> September 15, 1972 (1972 - 09 - 15) </Td> <Td> March 16, 1973 (1973 - 03 - 16) </Td> <Td> </Td> <Td> 27.6 </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 24 </Td> <Td_colspan="1"> September 14, 1973 (1973 - 09 - 14) </Td> <Td> March 29, 1974 (1974 - 03 - 29) </Td> <Td> </Td> <Td> 27.5 </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 25 </Td> <Td_colspan="1"> September 13, 1974 (1974 - 09 - 13) </Td> <Td> April 25, 1975 (1975 - 04 - 25) </Td> <Td> </Td> <Td> 29.6 </Td> <Td> N / A </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 5 </Td> <Td_colspan="2"> 24 </Td> <Td_colspan="1"> September 12, 1975 (1975 - 09 - 12) </Td> <Td> March 19, 1976 (1976 - 03 - 19) </Td> <Td> 7 </Td> <Td> 24.4 </Td> <Td> Rhoda </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 6 </Td> <Td_colspan="2"> 25 </Td> <Td_colspan="1"> September 24, 1976 (1976 - 09 - 24) </Td> <Td> March 25, 1977 (1977 - 03 - 25) </Td> <Td> 27 </Td> <Td> 20.3 </Td> <Td> N / A </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> <Th_colspan="3"> Nielsen ratings </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> <Th> Rank </Th> <Th> Rating </Th> <Th> Tied with </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 14 </Td> <Td_colspan="1"> January 14, 1972 (1972 - 01 - 14) </Td> <Td> April 14, 1972 (1972 - 04 - 14) </Td> <Td> 6 </Td> <Td> 25.2 </Td> <Td> N / A </Td> </Tr>

What happened on the last episode of sanford and son