We wont know until Saturday... at the earliest.
CBS has imposed a 6-day exemption for the second week in a row for games on the week of the 15th. (choosing between the Arkansas at Auburn, Mississippi State at Florida and South Carolina at Kentucky games for that day - but wont announce until this weekend - Monday at the latest)
They will likely announce their picks for the games on the 23rd as well. I think that they are only allowed so many '6-day exemptions'.
Looking at the schedule - I imagine that CBS is going to decide between BAMA/UT or LSU/Auburn, with the 'other' game going to ESPN.