this post was submitted on 05 Apr 2026
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The optimal viewing distance of a 65“ TV is somewhere between 1.98m and 2.69m for it to fill out 30-40° of our field of vision, as recommended by the Society of Motion Picture and Television Engineers (SMPTE), for an immersive „cinematic“ watching experience.
My TV is about 2.5m away from my couch and I’m quite happy with the size, although, if price didn’t play a role, I‘d have gone with another size up (77“). Although I admit, it’s not the most practical size and it’s not for everyone. It does take up a lot of space.
However with 42“ you’re definitely sacrificing quality. Or at least I would be at the 2.5m distance I sit from my TV. The vast majority of people (me included) could not discern any difference between a FullHD and a UHD image there. Our eyes simply do not have that resolution (measured at up to 94 pixels per degree). Even my 65“ at the aforementioned 2.5m distance has a higher resolution than my eyes.
So >=65“ is the only normal size for a normal home, if one actually wants a home cinema and actually not sacrifice on quality, detail and immersion.