We just got cable television service for the first time. Now, when showing the programs we want to watch, the television randomly “blinks” several times a minute. I mean, it looks like the screen goes black for maybe 1 or 2 frames. I did a little research and found advice that this means a cable is loose, but I don’t think this is it, because jiggling the cables doesn’t cause or fix it, and because this only happens during the programs, it has never happened during a commercial advertisement.
The cable company installed this by plugging a tiny box into an Ethernet connection. There’s no coax cable involved. However, we do use “cable TV” from the local phone company as our source of broadband and VOIP telephone, and that enters the house as coax, so of course ultimately the Ethernet is fed from a source based on cable TV. I think this is just kind of weird.
The television set also accesses Netflix and Amazon Prime over the same Ethernet hub and there’s no blinking on these.
Is this just part of Cable TV?