Sony KLV-40ZX1M performance summary

We couldn't help but be disappointed by the Sony KLV-40ZX1M's overall picture quality, especially given the excellent performance we've seen on nonedge-lit LED displays. Black levels were quite light, and we noticed more uniformity issues, notably brighter edges relative to the middle of the screen and poor off-angle viewing, than we're willing to forgive for a display at this price.