My nearly 6 year old S0NY LCD with a "S-LCD" panel from the S0NY and Samsųng joint venture in it keeps on truckin'. 26,292 hours so far, nary a glitch. I run the backlight at "3" ("5" is max)which greatly reduces panel heat and power consumption.
I'm beginning to keep an eye out for another one same or higher up model larger size up with low hours because these older ones have variable audio output RCA jacks and I think the pic quality is excellent when you get one tweaked in properly.