On another site someone had a nice explanation of why the COFH game in Athens is likely to almost always be a 12 noon game.
The FL-FSU, Clemson-SC, and L'ville-KY games all have reverse schedules to us (they are all home games for the ACC team this year), so SEC Network doesn't have broadcast rights.
That leaves the Iron Bowl, COFH, TN at Vandy and one of
LSU at TAMU or Miss St at Ole Miss.
Assuming the Iron Bowl is likely to get picked for the CBS 3:30 slot, then COFH is the only game SEC Network has the doesn't require a 11 am local time start.