Clemson-Virginia Tech is on at 7:30 ET/5:30 MT. BYU-CCU is on at 5:30 ET/3:30 MT.
The 3:30 ET/1:30 MT games on ABC, ESPN and ESPN 2 games would interfere with the ability for BYU-CCU to move to a different channel.
I guess there is the possibility that they move BYU-CCU back to 7 ET/5 MT kickoff...but that would mean that they would need to move around some kickoff times, like Oregon-Cal to 5:30 ET/2:30 PT...but I don't see them doing that on less than 48 hours notice.