It's all over the CNET news articles so ask Samsung (1800SAMSUNG) and the Dish folk if they have tested there gear with the HDCP 2.2 4K ports.
IT IS NOT A BAD HDMI CABLE. DON'T FALL FOR 4K HDMI CABLE GUY.
https://www.google.com/search?q=cnet+4k+hdmi+cables&ie=utf-8&oe=utf-8 finds both cable and HDCP 2.2 articles.
Bob
I have a Samsung 55 inch 4k ultra hdtv model un55hu6950fxza. Screen will go black with sound continuing. Lasts about a second. Connected to dish and Samsung sound bar with hdmi cables. What causes this?

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