the information i recieved was the correct distance to sit from your/our tv's is 2 1/2 times the screen size so my 42 incher lol equates to 105 inches works for me.
just to add i'm not enamoured with these LED LCD screens, the one i have atm is in another room i cant have a tv in the living room just yet, also i was plasmaman had a Kuro then when that played up a Panasonic near as i can tell theres nothing in LED's ans LCD's that even come close to plasmas....................i think when the time does come i'll be looking for a 55 inch OLED.
regards: canthackit
I could not agree more about the LED/LCD efforts for 4K like you i came from plasma the same again my last Pioneer was an 08 series which had fantastic picture quality and since then had to stick to Samsung Plasma which is quite close but just not the same.
And again totally agree with the Plasma to OLED as that is what the majority of A/V users agree on if you come from Plasma viewing then nothing else will do apart from OLED, but for a decent 4K OLED 55" your talking £2000 and the 65" is near 3K.
as for the viewing distances there are a few so called pro calcs out there that will give you an idea