Then I see one of these in your future. I have two of them: https://www.amazon.com/gp/product/B000FBK3QK/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1Thanks for your reply. You may have missed the part where I mentioned being a retired master electrician, I failed to mention that I wired the house myself. It is grounded properly. The induced voltage from a lightning strike can be huge if there are wires around to get induced to. It seems like the hdmi ports are very sensitive to voltage spikes. I feel like the first strike was induced by the camera cable system but it would be hard to prove.