I have looked at all of the answers here and I need to add this: last week when we had those terrible storms My TV was on in the living room and my computer was on in the bedroom. I was in the bathroom at the time. I heard an enormous POP at the same time there was a big lightening strike - my TV was on and I had a throwaway camera sitting on my dining room table which was TURNED ON by I assume the lightening. What I am getting at is this: I had a surge protector attached to my TV and it stopped the lightening from damaging my TV. All I had to do was get another surge protector attach it and everything came right back on. As for my computer, it knocked out my modem but didn't touch anything else. I know this all sounds crazy, but that is exactly what happened. So, surge protectors that are attached to your electronics DO work.
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