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.
The following can be triggers to a migraine attack and thus can be triggers for the scintillating scotoma or scotomata. 1  Alcohol. 2  Stress. 3  Anxiety. 4  Chemicals such as perfumes.  Smoking or second-hand 1  smoke. Bright lights.  Caffeine 1  withdrawal. Hormonal changes as in the monthly menstrual cycle, or oral contraceptive  usage.
scintillating scotoma. Nothing like experiencing a medical condition first-hand to really help a doctor understand it from the patient's point of view. After all these years, I had my first (and hopefully last) scintillating scotoma while sitting on the couch playing words with friends on my ipad and watching TV. A scotoma is a partial loss of vision in a normal visual field. Scintillate is flashing, sparkles.