DISH Network and its spin-off EchoStar suffered a key legal defeat Monday at the hands of the U.S. Supreme Court, which refused to review a Federal Circuit appeals court ruling that found EchoStar liable for infringement of digital video recorder (DVR) patents held by TiVO. Handed down without comment, the high court’s decision closes the latest chapter in a four-year legal battle that centered upon patents relating to TiVO’s “time shifting” video recording technology, which enables users to record TV programs and play them back simultaneously with instant replay and pause capabilities. In 2006, TiVO convinced a U.S. district court jury to award $90 million in damages against the illegal and willful use of TiVO patents in DVRs developed by EchoStar for DISH customers. (TiVO was also granted injunctive relief against EchoStar’s continued use of the patents in question.) In January, a three-judge panel of the Federal Circuit court upheld key portions of the district court verdict, and an en banc appeals court panel subsequently turned down EchoStar’s request for rehearing. In its appeal to the Supreme Court, DISH argued unsuccessfully that the district court improperly limited the testimony of one of EchoStar’s expert witnesses and that the Federal Circuit erred by “[prohibiting] patent infringement defendants from introducing evidence of the key inconsistencies in the plaintiff’s evidence.” Reacting to the Supreme Court order, DISH said Monday it would pay $104 million to TiVO to cover the jury award plus accumulated interest. A DISH spokesman added that the high court ruling would not “impact our software design-around, which has been placed in DISH DVRs subject to the district court’s injunction.” Meanwhile, TiVO—which contends that DISH’s redesigned DVR software continues to violate TiVO patents—said it remains “confident that the district court will enforce the injunction and award further damages from EchoStar’s continued infringement of our Time Warp patent.”