Suppose we put this spectrum up for sale. (The local stations do not “own” this spectrum. They have licenses granted by the Federal Communications Commission.) Although the details of how to conduct this auction are important, they don’t make compelling reading on a Sunday morning. Interested readers should examine a detailed proposal made to the F.C.C. by Thomas W. Hazlett, a professor at the George Mason University School of Law who was formerly the F.C.C.’s chief economist.

Professor Hazlett estimates that selling off this spectrum could raise at least $100 billion for the government and, more important, create roughly $1 trillion worth of value to users of the resulting services. Those services would include ultrahigh-speed wireless Internet access (including access for schools, of course) much improved cellphone coverage and fewer ugly cell towers. And they would include other new things we can’t imagine any more than we could have imagined an iPhone just 10 years ago.

But some compelling technology that could use these frequencies already exists, like wireless health monitoring  to check diabetics’ blood sugar regularly, for example  and remote robotic surgery that can give a patient in Idaho a treatment like that available in New York or Chicago.

Who would oppose this plan? Local broadcasters are likely to contend that they are providing a vital community service in return for free use of the spectrum that was put in their hands decades ago. Whether the local news or other programs are vital services is up for debate, but their value isn’t the issue, because they can be made available via cable, satellite and other technologies, including improved broadband.

Say there are 10 million households that still get their television over the air, including those that can’t afford cable or satellite and some that generally just don’t care for what’s on TV. (Yes, there are people who don’t like “American Idol.”) But about 99 percent of these households have cable running near their homes, and virtually all the others, in rural areas, could be reached by satellite services. The F.C.C. could require cable and satellite providers to offer a low-cost service that carries only local channels, and to give vouchers for connecting to that service to any households that haven’t subscribed to cable or satellite for, say, two years.

Professor Hazlett estimates that $300 per household should do it: that amounts to $3 billion at most. Compared with the gains from selling off the spectrum, it’s a drop in the bucket. Or, as an interim step, we could reduce the number of channels available in a community from 49 to, say, 5.