Everywhere you look, there are big games on the NCAA football schedule. In the Big 12, Oklahoma tangles with Oklahoma State. In a Big Ten match-up, Penn State faces its third straight top-25 team in Michigan State. No. 4 Clemson is at North Carolina State in a key ACC showdown, while the big SEC game sees LSU visiting second-ranked Alabama. Stanford-Washington State and USC-Arizona are huge Pac 12 tilts.