<Tr> <Th> 69 </Th> <Td> 11 </Td> <Td> "Arrivals" </Td> <Td> TBA </Td> <Td> TBA </Td> <Td> 1979 (1979) </Td> </Tr> <Tr> <Th> 70 </Th> <Td> 12 </Td> <Td> "Brotherhood, Sisterhood" </Td> <Td> TBA </Td> <Td> TBA </Td> <Td> 1979 (1979) </Td> </Tr> <Tr> <Th> 71 </Th> <Td> 13 </Td> <Td> "Mary, He's Married" </Td> <Td> TBA </Td> <Td> TBA </Td> <Td> December 12, 1979 (1979 - 12 - 12) </Td> </Tr> <Tr> <Td_colspan="6"> Mary's friendship with a doctor begins to develop into a romance . Nicholas dabbles in sales with face cream . Joannie tries to produce a documentary on her family for a promotion at work . </Td> </Tr>

Who played the mom on eight is enough