I left off my obligatory IR addendum that I had typed out, but I hear you on that one. I even gave it a proper name the other day: Purple Haze. My semi-constant companion, thankfully most content sends it off into hiding. Maybe I'll get a bug up my butt someday and see what the Geek Squad will do for me, but for now there's nothing I'd care to replace it with, so living with it for the time being.
Regarding surge issue, my UPS was happy to buzz along with the ZT's buzz, at least doubling it, so I just make sure to pull the plug when it gets electric outside, or whenever I leave the house when it's in the forecast. That and my subwoofer.
I've had a few other pricey TVs in the past, seems to be my lot to pick the ones that end up with issues. If you see me in the future in some other TV thread, you'll know which one I should have avoided next.