Television broadcasters scored a big victory last week in their quest to power down online television streaming services. It's a dispute that likely seems headed to the U.S. Supreme Court, entertainment lawyers say, given divided rulings from courts across the country.

A Washington federal trial judge granted a nearly nationwide injunction on September 5 blocking the operations of FilmOn, one of the streaming services to face the networks' wrath in court. U.S. District Judge Rosemary Collyer found that FilmOn X LLC was retransmitting copyrighted material in violation of federal law.