In an attempt to free up more bandwidth for data-hungry smartphones, the Federal Communications Commission is inviting public-television stations — including those run by colleges — to sell off their slivers of the airwaves. The agency has announced openings bids that project what roughly 1,800 stations might receive for moving to lower-frequency channels or for going off-air entirely. Here are the colleges that got the highest bids for going off-air, which is the most lucrative option. Also listed are the bids they got for moving to a high-VHF channel, the least lucrative option. Participants will probably make only a fraction of the money represented by the opening bids, and institutions that participate in the auction's first round may not end up selling their spectrums.