The US Supreme Court last week agreed to hear a case in which two individuals sued a New York cable-TV public access channel for violating their First Amendment rights by banning them from the channel's services and facilities.In Manhattan Community Access Corp. v. Halleck, the two petitioners, Halleck and Melendez, argue that the Manhattan Neighborhood Network (MNN) unconstitutionally banned them from the public access channel, which they argue is a public forum subject to the First Amendment.