<Tr> <Th> Playoff appearances </Th> <Td> 2 (2014 *, 2016) </Td> </Tr> <Tr> <Th> Playoff record </Th> <Td> 2--1 (. 667) </Td> </Tr> <Tr> <Th> Claimed nat'l titles </Th> <Td> 8 (1942, 1954, 1957, 1961, 1968, 1970, 2002, 2014) </Td> </Tr> <Tr> <Th> Conference titles </Th> <Td> 38 (2 OAC, 36 Big Ten) </Td> </Tr>

What years did ohio state football win national championships
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