The only way you can get the Digital Signal & have a good picture is if you buy a TV with built-in QAM tuner, which allows you to connect your in-coming cable(digital) to the back of the TV, without the need for a set-top box.ut your TV has no idea what to do with them. Your TV is analog only-it can display unscrambled analog channels over the raw cable, but that's it. So you need the cable company's box to decode and unscramble the digital signals.
Panic not a cause: Scintillating scotomas are most commonly caused by cortical spreading depression, a pattern of changes in the behavior of nerves in the brain during a migraine. Panic is not on the list of causes on any source i found. The first sentence is from the wikipedia article on scintillating scotomata.
Sciatica is caused by irritation of the sciatic nerve. A slipped disc is the most common cause of sciatica. Additional common causes of sciatica include: 1  Lumbar spinal stenosis (narrowing of the spinal canal in the lower back). 2  Degenerative disc disease (breakdown of discs, which act as cushions between the vertebrae).