Pretty sure Nebraska at some point, in some regard was offering to set up an end all, say all game for all the marbles. Pretty sure Michigan and/or the Big 10 denied it.
Actually, Fox was.
Before Michigan pulled it from their website some time ago, an internet sleuth on Huskerpedia back in the early 00s (read: when it was free) found minutes from a committee dealing with their Athletic Department and funding/expenditures. In it, it was explained that Fox approached both Nebraska and Michigan after the game to offer a one-shot, winner-take-all match on their network. Each school would get something like $2 million each. Michigan rejected it, citing worries about reprisal from the NCAA and the toll it would take on their student athletes.
It was also noted in their minutes that Nebraska had already accepted the offer.