The Supreme Court ruled Wednesday that a startup Internet company has to pay broadcasters when it takes television programs from the airwaves and allows subscribers to watch them on smartphones and other portable devices.
The justices said by a 6-3 vote that Aereo Inc. is violating the broadcasters' copyrights by taking the signals for free. The ruling preserves the ability of the television networks to collect huge fees from cable and satellite systems that transmit their programming.
Aereo is available in New York, Boston and Atlanta among 11 metropolitan areas and uses thousands of dime-size antennas to capture television signals and transmit them to subscribers who pay as little as $8 a month for the service.
Some justices worried during arguments in April that a ruling for the broadcasters could also harm the burgeoning world of cloud computing, which gives users access to a vast online computer network that stores and processes information.
But Justice Stephen Breyer in his majority opinion that the court did not intend to call cloud computing into question.
Justices Antonin Scalia, Samuel Alito and Clarence Thomas dissented.
Broadcasters including ABC, CBS, Fox, NBC and PBS sued Aereo for copyright infringement, saying Aereo should pay for redistributing the programming the same way cable and satellite systems must or risk high-profile blackouts of channels that anger their subscribers.