Your new Sony 4K UHD TV includes a builtin upscaler that scales all std. def. and high def. video to 4K resolution for display. Having a external device, be it either a Blu-ray player or an AVR, do the upscaling only would make sense if the scaler in that external device performs better than the scaler included in the 4K UHD TV.. At this point the BD players and AVRs that include this 4K upscaling feature are generally no better, and may be worse, that the scaling capability that is already built into our new Sony UHD TV.
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