What is going on with my Samsung Smart TV?

My TV has started acting weird when I try and watch any of the news stations. The screen will be normal to start but then will dim and turn black, then normal again, then dim, and then go to black again in regular intervals. But only to the News stations. Anything else, like Netflix, Prime, Disney, Paramount, or others, doesn't do this. I didn't change any settings on it so? I unplugged it and back in to see if that would help but it didn't. Any ideas?

What is going on with my Samsung Smart TV?
Updates
8 mo
I recall trying to get a voice caption turned off which I turned it on somehow, and may have pushed some wrong buttons. I got the voice turned off but may have done something else too. I have discovered it does that on any Samsung TV Channel show too. The audio isn't affected, just the screen pictures. 😖
Updates
8 mo
OK, I don't know what caused it to begin with, but it is no longer happening as of today. And I haven't done anything outside of using a remote to change channels.
What is going on with my Samsung Smart TV?
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