For almost 50 years, TV stations have had a valuable slice of the airwaves almost en-tirely to themselves. Soon, however, their gated community could become consider-ably less exclusive. To accommodate the explosion of wireless products and the resulting demand for spectrum, the FCC wants to squeeze a gaggle of new gizmos—including computer printers, Blackberries and highspeed Wi-Fi networks—into the handful of TV channels that lie vacant in every market.
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