You all keep forgeting that cbs needs to recoup the $95 million they payed for this turkey of a signal on 106.9! Harold Camping laughed all the way to the bank with CBS money, and I bet he's still laughing just that much more now! Some people never learn.
Don't forget: the key to the deal for CBS was getting a TV station in Sacramento, not getting an FM in San Francisco. They lost a great legacy radio station (albeit of the lowly AM variety), and may have acquired an awfully large albatross as a part of the bargain.
Re: Harold Camping. With all due respect to him, I have heard him on the air for many, many (many, many, many) years, and I don't believe he laughed all the way to the bank. In fact, if he even cracked a smile, I'd be shocked.