Cable television system operators retransmitted terrestrial channels, including channels subject to mandatory retransmission pursuant to the Broadcasting Act, without providing any payment to the relevant terrestrial broadcasters in Korea. Therefore, on September 10 2009, KBS, MBC and SBS (the three terrestrial broadcasting stations) filed a preliminary injunction seeking the suspension and prevention of various infringements against a major operator, alleging that the retransmission infringed their copyright (the right of broadcasting from the rights of communications to the public) and neighbouring rights (simultaneous relay broadcasting rights).