I saw this for the first time yesterday as well. And I have a VIP211k. Something on the Dish feed?
It's Braille, but you have to touch the screen.Been seeing that a lot here too.
Yesterday, I was in the surgery waiting room at our local hospital. On HGTV, the graphic in question popped up in the top left portion of the screen several times in the two hours I was there. The hospital is on Spectrum cable.