<Tr> <Td> New England Patriots </Td> <Td> 17 </Td> <Td> Dallas Cowboys </Td> <Td> 20 </Td> <Td> </Td> </Tr> <Tr> <Td> Nov. 28, 1985 </Td> <Td> New York Jets </Td> <Td> 20 </Td> <Td> Detroit Lions </Td> <Td> 31 </Td> <Td> </Td> </Tr> <Tr> <Td> St. Louis Cardinals </Td> <Td> 17 </Td> <Td> Dallas Cowboys </Td> <Td> 35 </Td> <Td> </Td> </Tr> <Tr> <Td> Nov. 27, 1986 </Td> <Td> Green Bay Packers </Td> <Td> 44 </Td> <Td> Detroit Lions </Td> <Td> 40 </Td> <Td> </Td> </Tr>

When was the last time the cowboys won a thanksgiving game