I could see why someone might be confused in the Mayer of what the FCC can regulate, considering that it regulates the content of television and radio broadcasts and somehow regulates cable TV providers, despite the use of wired connections to customers, instead of radio transmissions.
Where in the Federal Communications Commission's governing legislation does it say that they're only allowed to regulate things sent through the airwaves?
> somehow regulates cable TV providers, despite the use of wired connections
They regulate broadcast TV. Those rules leak into cable TV because the originators generally want content that can be sold for broadcast in the future and is advertiser friendly. Cable operators are also often beholden to community standards imposed by municipalities they serve. The FCC isn't responsible for content restrictions on cable.