The company is Aereo Inc., and the justices are hearing arguments Tuesday over its service that gives subscribers in 11 U.S. cities access to television programs on their laptop computers, smartphones and other portable devices. 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 do. When a subscriber wants to watch a show live or record it, the company temporarily assigns the customer an antenna and transmits the program over the Internet to the subscriber's laptop, tablet, smartphone or other device. The 2nd U.S.