The U.S. Supreme Court case Federal Communications Commission (FCC) et al. v. WNCN Listeners Guild et al., 1980, revolved around the FCC's decision to approve a radio station's format change from non-commercial classical music to commercial country music without considering public interest in maintaining the former format. The WNCN Listener’s Guild challenged this approval, arguing that it violated the Communications Act of 1934 which requires consideration of public interest when granting licenses or modifications thereof. However, the Supreme Court ruled in favor of FCC by a vote of 5-3 and upheld its policy not to interfere with broadcasters' programming decisions unless there is evidence of an abuse of discretion or violation against anti-trust laws or other regulations outside FCC’s purview. The court held that such interference would infringe upon First Amendment rights and could lead to government control over content, contrary to legislative intent behind creating independent regulatory commissions like FCC.

In the dissenting opinion for FCC v. WNCN Listeners Guild, Justice Brennan argued that the Federal Communications Commission (FCC) had overstepped its authority by allowing radio stations to change their format without considering public interest or input. He contended that this decision contradicted the Communications Act of 1934, which mandates that broadcasting serve the "public convenience, interest or necessity." Furthermore, he believed it was inappropriate for courts to defer so heavily to administrative agencies like FCC in determining what constitutes public interest. In his view, such a significant policy shift should have been decided by Congress rather than an unelected agency. This case represented a broader debate about regulatory power and democratic accountability within federal agencies.