

Is it possible? Yes. You can see examples in mainland China where foreign channels, including the more liberal channels from Hong Kong, routinely get blacked out when China news come on (unless they are gloriously positive).
Is it likely where you are? No. Especially it happening on broadcast channels you would hear a lot more about it. The socials would be full of it. There would have to be an office full of people censoring broadcast channels as they go out. We know the Chinese are operating such a facility because we heard about it. And we haven’t heard anything like that for the US. Ockham’s razor points at a buffering issue somewhere along the distribution chain from the news studio to your local antenna. A streaming video, like on YouTube, is just freeze framed when it’s buffering also. And I don’t think you as an individual consumer are important enough for somebody just doing it for your receiver.






It’s a funny coincidence of history that gated communities for the well off folks in capitalism and mass housing for the not well off in communism follow the same design principle: few access points that can be controlled by a single tank each.