Got the LG PA4520 today, put it on stand and connected it to Airtel HD STB via HDMI. Got a boxed, sealed piece which was opened before me in the LG shoppe showroom. The stapled seal on the box was broken before me and was given a demo at the showroom itself. PQ seemed equal to the LG LEDs nearby and the best news was the superlative quality of the SD channels. Whatever be the reason, be it the resolution upscaler built in or the HDMI input for SD channels, the SD channels look almost HD, there is no motion blur, no ghosting as found in another showroom during playback of SD channels on a Bravia, Samsung LEDs. There are 3 energy modes which reduce brightness and contrast and save energy. Rated power consumption is given as 300Watts which is near the border of what my APC UPS can support. Hope running consumption normally is around 120-140Ws. A significant point is that there seems to be no issues with glare on the TV since there is a reading lamp bang opposite the TV and yet there is no reflection of the same.
The bezel is really slim giving a more theatre experience. Warranty is supposed to be 1+4 years in AMC. Have mounted the TV on a stand, since the wall mounting is supposed to be done by the LG service who will come only tomorrow. 42 inches looks really large in my room and a whole wall is filled with this TV. Don't know how to access service menu, maybe I can ask the LG service guys tomorrow.