[mythtv-users] Electrical power in my cable line? Is that bad?

[A JM]

Since this thread seems to be cable grounding oriented with regard to bars
and lines in the picture can someone tell me what the term is for vertical
bars in the picture that repeat across the screen?

Is it called banding? is that caused by a bad ground or some other issue?
similar to the problem Keith is having?

Thanks,
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