So, I really want the 70" screen size for my family room, and do I understand correctly that the R series will not have a 70"? If so, I'm wondering, for moderately bright rooms, if the P series 70" image quality will satisfy most viewers who could be characterized as "enthusiasts", as opposed to "videophiles". Would the benefit of 10 bit color with the R series be readily apparent when watching sports and news programming on HD cable service? What about current Blu-ray titles? What about 4K Blu-ray when finally available? If the 65" R series is going to be so superior that anybody will readily perceive it, maybe I could give up the extra screen real estate. Thanks for any tips!