Watch the latest installment of the 'Red River Rivalry' -- Oklahoma vs. Texas, from the Cotton Bowl. Coverage begins Saturday at 11 a.m. ET on FS1.

Oklahoma great Billy Sims explains how he first learned he won the 1978 Heisman Trophy, edging Penn State quarterback Chuck Fusina in one of the closest votes in the award's history. There was no made-for-TV ceremony like there is today.

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