Yes. Justice Stephen G. Breyer delivered the opinion for the 6-3 majority. The Court held that, because Aereo is functionally similar to community antenna television (CATV), which Congress specifically amended the Copyright Act to cover, the Copyright Act regulates Aereo's actions in a similar manner. Under the definitions Congress established in the Copyright Act, Aereo performs work because it shows images in sequence with the accompanying audio, and it does so publicly because those images and sounds are received beyond the place from where they were sent by a large number of unrelated people. Therefore, Aereo, like CATV, is not just an equipment provider but rather a broadcaster.
Justice Antonin Scalia wrote a dissent in which he argued that Aereo merely provides a platform for the customer to use as he sees fit. Because Aereo plays no role in the selection of content, it does not "perform" in any meaningful sense and cannot be held liable for the customer's choice of transmission content. Justice Scalia wrote that the majority opinion was based on the faulty assumption that Aereo's services resembled CATV, which creates a rule so broad as to be useless. Instead, Justice Scalia argued that the question of volitional conduct is the appropriate bright-line test to use in such cases. Justice Clarence Thomas and Justice Samuel A. Alito, Jr. joined in the dissent.