Not really answering your question but I thought I'd mention that I must be much more paranoid than a few of you. There is no UPS or power conditioner, I can certainly afford, to trustingly keep my electronics safe during a lightning storm. If the storm gets close, I unplug my AV gear and my PC. I have even gotten spooked enough to disconnect the leads coming into my invisible fencing transmitter. (Nothing like having an acre & 1/2 worth of lightning rod buried around your back yard.) Any other appliances are fair game.
There are some very good products that get into milliseconds for opening a circuit at risk. I guess I am just am not convinced they were designed to isolate electricity so strong it's arcing from sky to ground.
After I run around unplugging my stuff, I go out on my covered deck to watch the show. Go figure......
