<Tr> <Td> 1979 </Td> <Td> Beneath the Valley of the Ultra-Vixens </Td> <Td> Rhett </Td> <Td> Feature film </Td> </Tr> <Tr> <Td> 1980--81 </Td> <Td> Little House on the Prairie </Td> <Td> Percival Dalton </Td> <Td> Semi-regular role (11 episodes) </Td> </Tr> <Tr> <Td> 1981 </Td> <Td> Desperate Moves </Td> <Td> Andy Steigler </Td> <Td> Feature film (aka Steigler and Steigler) </Td> </Tr> <Tr> <Td> 1982 </Td> <Td> The Jeffersons </Td> <Td> Steve </Td> <Td> Episode: "Jeffersons Greatest Hits" </Td> </Tr>

Who played nellie oleson husband on little house on the prairie