input lag with LG? not in my case

I’m using LG LW550T connected with XBOX 360 and never had too much input lag. It works just right and personally I don’t understand people complaining about that much about it. I don’t have wii so can’t say exactly on that one, but as far as I know LG product is problem free. I’ve gone through a lot of LG products and haven't been disappointed yet.