By Lawrence Hurley and Jonathan Stempel WASHINGTON (Reuters) – Broadcast and cable TV are not dead yet. In a decision that could crimp consumers hopes to cut the cord from their cable operators, the U.S Supreme Court said Aereo Inc, a video streaming service backed by media mogul Barry Diller, violated copyright law by using tiny antennas to broadcast TV content online to paying subscribers. Wednesdays 6-3 decision is a victory for traditional network operators such as CBS Corp, NBC parent Comcast Corp, ABC parent Walt Disney Co and Twenty-First Century Fox Inc. It may also make it harder for Internet rivals to provide alternative, a la carte programming at cut-rate prices.