Last night there were 6 hours of severe Lightening storms in my area which cause power outages and surges and spikes. I noticed when i woke up my TV was off but i left it on when i went to sleep. When i turned it back on, it seem to turn on just fine. but How would i know if there were any damages to my TV due to last night's power surges and spikes ? I have a very expensive Sony 4K television which cost me around $4000. so i was worried. Thank you in advance.