The FCC has indicated that it’s Initial Clearing Target Band Plan in the Incentive Auction would make RF Channel 29 the top of the TV dial. See figure below:
If bidding continues past the first stage, the amount of spectrum up for auction will be reduced and a higher RF channel number will become the top of the TV dial (resulting in more spectrum for TV).
Bidding from the wireless companies begins on 31 May 2016 and continues “until further notice”. The FCC Public Notice is here.