could be any time. It will almost certainly be a broadcast network game so it will be on FOX, CBS or NBC. But each of those channels has a separate window of 12 PM, 3:30 PM, 7:30/8:00 PM respectively. Ohio St/Indiana will certainly be one of the other network games. The last one will probably be between East Carolina/Michigan or Northwestern/Rutgers. I'd guess the former.
Supposedly, NBC will also have a Sunday night game the first week each year (basically in their NFL broadcast slot, but the weekend before NFL season starts). I have a feeling that Northwestern/Rutgers will end up being in that slot.