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....Which is 4x the resolution.... Resolution isn't the measure of the width or the height, it's the measure of the image as a whole. A single UHD frame is literally the size of four 1080p frames. That's 4x....
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Well, then what you'd say is wrong. Resolution measures the entire image, not a flat line of pixels on the width or the height. There's literally 4x the amount of pixels, 4x the amount of data, 4x the amount of color information, 4x the amount of detail, and 4x the amount of resolution. How do people not know this by now? It's the most basic math there is. 2x2=4. Everybody knows this!
Saying I am wrong doesn't make you right.

Here is the definition from a dictionary:

a measure of the sharpness of an image or of the fineness with which a device (such as a video display, printer, or scanner) can produce or record such an image usually expressed as the total number or density of pixels in the image a resolution of 1200 dots per inch

If you stop and think about it, it is the ability to resolve detail.

If I have a 2 by 2 square, I can draw 1 vertical line with gap to the side. I can resolve 1 line of detail
If I have a 4 by 4 square, I can draw 2 vertical lines with a gap to the side. I can resolve 2 lines of detail

If there were 4 times the resolution I would have been able to resolve 4 lines of detail but I can, there is only 2 times the resolution.

Perhaps you should stop and think before criticising people and try to answer using facts.

You also mention that 2 x 2 = 4, you are correct. Multiplying by 2 gives you double, twice...

Don't conflate total pixel count and resolution.
 
Believe me, it’s not TV makers. They want you to waste money on smaller 4K TVs all day because it’s just marketing hype. It’s just science and the fact that your retinas, even with perfect vision, cannot discern the pixels from that far at that size. What can they discern? Better color, contrast, and brightness. But not better sharpness. As a matter of fact, from 9ft away, a 55” TV isn’t even full 1080p. If those other features are important to you, then that’s fine. But most people would be better off getting a 1080p TV and saving they money and data usage (many home internet connections have caps now in the U.S.). In a few years large 4K TVs will be much more affordable. People like to argue with me a lot about this on the forums, often because they don’t want to admit that they wasted money on something irrelevant. We can only grow as humans when we learn from our mistakes and move on. You very likely do not have super human vision, and science has proven the limits of our vision, so it’s quite easy to calculate.

Try out the calculator at the bottom of this page to see for yourself: https://referencehometheater.com/2013/commentary/4k-calculator/

I love how people try and blanketly state what my own personal perceptions and eyesight tell me. I tell you I CAN see the difference between 4K UHD and 1080P and in your ARROGANCE you try and argue that I'm somehow wrong because, "Science" tells you that I am wrong. This is such a stupid, circle jerk "argument," because it is IMPOSSIBLE for you to state with arrogant certainty what I"M SEEING and what my PERCEPTIONS are.
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I hope they morph it into a home media hub with a large hard drive so I can store all my iTunes content.

It already is. Kind of. I have a 16TB HD connected to my Macbook and run a home media server using both Plex and the Homeshareing. I wish Apple would fix crappy iTunes so you could easily split your content. I'd love to have my music on my MBP and my TV/Movie stuff spread across multiple smaller drives. I know you can do this simply by not having iTunes import things in, but since my library is 10 yrs old, I would have to rebuild my music playlists from scratch - which I don't want to do.
 
It gives you 4 times better quality, because it's bigger in two dimensions, so the overall size is 4 times larger.

It's like with photos.

8 megapixel photo is 4 times bigger than 2 megapixel photo.

Even though the vertical and horizontal edges are only 2 times longer, the overall pic is 4 times larger.
The picture is 4 times larger but you can only resolve twice the detail.
Think about a 2 times zoom lens, it only makes something twice as large, ie a square would be twice as large but have 4 times the area.
 
I love how people try and blanketly state what my own personal perceptions and eyesight tell me. I tell you I CAN see the difference between 4K UHD and 1080P and in your ARROGANCE you try and argue that I'm somehow wrong because, "Science" tells you that I am wrong. This is such a stupid, circle jerk "argument," because it is IMPOSSIBLE for you to state with arrogant certainty what I"M SEEING and what my PERCEPTIONS are.
Actually, science does do exactly this. They've measured the resolution within the eye and it's impossible to perceive higher resolution beyond a certain point. I'm not arguing that it looks better. I originally said there are many other factors that make it look better. Resolution just isn't one of them. However, there are side effects of higher resolution such as reduced screen door effect which also increases brightness, along with better contrast, HDR with better color gamuts and other things. One of my degrees is in photography and we learned about a lot of this stuff and how it relates to print size, DPI and viewing distance in galleries. It's all the same stuff, and the scientists online agree. You can say all day long that you can tell a difference in sharpness, but I'm telling you psychology is also a thing, and you'd be amazed at what spending a lot of money on something does to your brain in convincing it that something is better. In tests people will almost always say that the item they were told is most expensive is of higher quality, even if it was actually the cheaper item. It's human nature to be this way, I'm not faulting you as I've also fell for it before. The marketing hype for 4K has conditioned people to think they can see a difference far away on their couch for these small screens. And they are better screens, but don't kid yourself about the resolution. You see a difference up close at the store, and when you're up close installing it. After that? Nope.
 
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The size of square A is 2m x 2m, or 4 metres squared.

The size of square B is 4m x 4m or 16 metres squared.

Square B is four times the size of square A.
Your maths (or arithmetic) is good here but you are not making a point about anything...
 
Weird how anytime MR or any site brings up the topic of 4K. You get a LOT of stupid arguments from people yelling about how it's crap and you shouldn't buy it. It's not for everyone, I get that, but it's MY money and I will "waste" it however I want. No amount of "rebuttals" citing dumb "scientific research" or "technical jargon" is going to convince me that I magically "can't" see the difference.

Therefore I must be lying and not really happy with my gorgeous TV. No one is forcing you to buy it. Why do you haters care so much that you have to constantly argue with people about it? We get it, you don't like 4K (or insert whatever other thing you don't like), move on with your life.
 
I love how people try and blanketly state what my own personal perceptions and eyesight tell me. I tell you I CAN see the difference between 4K UHD and 1080P and in your ARROGANCE you try and argue that I'm somehow wrong because, "Science" tells you that I am wrong. This is such a stupid, circle jerk "argument," because it is IMPOSSIBLE for you to state with arrogant certainty what I"M SEEING and what my PERCEPTIONS are.

I can tell as well. Plenty of people will hate a technology just because apple hasn't embraced it. We have up waiting for a 4K Apple TV and bought a Panasonic UHD Zhou Rhys player which is fantastic at 4K Netflix and is faster at streaming 4K than our Apple TV is at 720/1080 content.
 
Actually, science does do exactly this. They've measured the resolution within the eye and it's impossible to perceive higher resolution beyond a certain point. I'm not arguing that it looks better. I originally said there are many other factors that make it look better. Resolution just isn't one of them. However, there are side effects of higher resolution such as reduced screen door effect which also increases brightness, along with better contrast, HDR with better color gamuts and other things. One of my degrees is in photography and we learned about a lot of this stuff and how it relates to print size, DPI and viewing distance in galleries. It's all the same stuff, and the scientists online agree. You can say all day long that you can tell a difference in sharpness, but I'm telling you psychology is also a thing, and you'd be amazed at what spending a lot of money on something does to your brain in convincing it that something is better. In tests people will almost always say that the item they were told is most expensive is of higher quality, even if it was actually the cheaper item. It's human nature to be this way, I'm not faulting you as I've also fell for it before. The marketing hype for 4K has conditioned people to think they can see a difference far away on their couch for these small screens. And they are better screens, but don't kid yourself about the resolution. You see a difference up close at the store, and when you're up close installing it. After that? Nope.

In this instance, I don't care what your so-called "Science" says. I care about what my OWN eyeballs tell me and no book report you post on the internet is going to convince me otherwise.
 
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The marketing hype for 4K has conditioned people to think they can see a difference far away on their couch for these small screens. And they are better screens, but don't kid yourself about the resolution. You see a difference up close at the store, and when you're up close installing it. After that? Nope.
This is rubbish. I go daily between a 4K (55 inch) and 1080p (40 inch) tv. There is a clear difference between the two and its not the colour, it is the resolution.
 
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My ATV 3 is a dream to use compared to the buggy mess and terrible remote on the ATV4. Scrolling through large lists on the ATV4 is a nightmare.

The scrolling was a problem when it was initially released, but it was updated quite awhile ago to have a much faster scroll speed if you're persistently using a quick gesture.
 
The scrolling was a problem when it was initially released, but it was updated quite awhile ago to have a much faster scroll speed if you're persistently using a quick gesture.

That's the problem, for me, it's too fast and "floaty," and I've tried changing the settings. Not to mention it just hurts my finger after a few minutes. I prefer the click wheel on the ATV3 remote.
 
This is rubbish. I go daily between a 4K (55 inch) and 1080p (40 inch) tv. There is a clear difference between the two and its not the colour, it is the resolution.

The question though is whether or not you're seeing a difference in pixels or in contrast (i.e., sharpness). If you've ever used Photoshop, you can take a photo and sharpen the details significantly without actually changing the number of pixels that you're seeing. It appears to the eye to be "higher" resolution, but it's not. That's what some of the studios have done to release '4K' content...running a lower resolution original through sharpening filters. I think this was done with 1080p content at times as well.
 
The question though is whether or not you're seeing a difference in pixels or in contrast (i.e., sharpness). If you've ever used Photoshop, you can take a photo and sharpen the details significantly without actually changing the number of pixels that you're seeing. It appears to the eye to be "higher" resolution, but it's not. That's what some of the studios have done to release '4K' content...running a lower resolution original through sharpening filters. I think this was done with 1080p content at times as well.

I've put my two tvs side by side. The 4K TV is an earlier non HDR model and is quite similar to the 1080p model in most respects. Playing the same content on both, it looks better on the 4K screen, even if it's just 1080 content upscaled. There is a definite difference with proper 4K content as well.

People can argue it all they want but I know what I see every time
I use the TV.
 
I love how people try and blanketly state what my own personal perceptions and eyesight tell me. I tell you I CAN see the difference between 4K UHD and 1080P and in your ARROGANCE you try and argue that I'm somehow wrong because, "Science" tells you that I am wrong. This is such a stupid, circle jerk "argument," because it is IMPOSSIBLE for you to state with arrogant certainty what I"M SEEING and what my PERCEPTIONS are.
It all depends on your point of view.
If I stand in a shop looking at an HD and UHD tv, I'd be a fool to say I couldn't see a difference.
Step back a few steps and I would still be able to tell the difference.
Step back far enough and I couldn't tell the difference between the two.
Look it an other way, you know the digital or paper advert boards, they look great from a distance, but if you were up close you would see the size of the pixels are huge.
Or look at a tree or a mountain, it is really detailed up close, but get farther away and you don't see the detail.
Its all a measure of how much the eye can resolve at a given distance.
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I've put my two tvs side by side. The 4K TV is an earlier non HDR model and is quite similar to the 1080p model in most respects. Playing the same content on both, it looks better on the 4K screen, even if it's just 1080 content upscaled. There is a definite difference with proper 4K content as well.

People can argue it all they want but I know what I see every time
I use the TV.
If you put two tv's together you will be able to tell them apart up to a given distance with respect to detail.
Get far enough back and they will both show the same level of detail.
Yes the 4K one will probably look nicer with its better colour gamut and dynamic range.
 
If you put two tv's together you will be able to tell them apart up to a given distance with respect to detail.
Get far enough back and they will both show the same level of detail.
Yes the 4K one will probably look nicer with its better colour gamut and dynamic range.

I just said that the 4K TV is anearlier non HDR model. There is little differnece in their display of colour.

There is a substantial diffence from where I sit in the room and it has nothing to do with colour and everything to do with the fact that one screen is 4K and one is 1080p.
 
It all depends on your point of view.
If I stand in a shop looking at an HD and UHD tv, I'd be a fool to say I couldn't see a difference.
Step back a few steps and I would still be able to tell the difference.
Step back far enough and I couldn't tell the difference between the two.
Look it an other way, you know the digital or paper advert boards, they look great from a distance, but if you were up close you would see the size of the pixels are huge.
Or look at a tree or a mountain, it is really detailed up close, but get farther away and you don't see the detail.
Its all a measure of how much the eye can resolve at a given distance.

Agree with most of what you said, but at the end of the day I simply DON'T care what YOU can or cannot see. I know I can tell the difference and that's all that matters to ME. No amount of cheap "Science babble" and screaming I'm an moron for falling for "marketing hype" is going to convince me otherwise.
 
Agree with most of what you said, but at the end of the day I simply DON'T care what YOU can or cannot see. I know I can tell the difference and that's all that matters to ME. No amount of cheap "Science babble" and screaming I'm an moron for falling for "marketing hype" is going to convince me otherwise.
I'm not saying you are a moron, nor am I saying that you cannot see a difference. (Well maybe I am - not the moron part, it all depends on the size of your tv, the resolution and how far back you sit from your tv. :D)

For any given size of tv, there is a distance range that you have to sit in to see the difference. You obviously are sitting within that distance.
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I just said that the 4K TV is anearlier non HDR model. There is little differnece in their display of colour.

There is a substantial diffence from where I sit in the room and it has nothing to do with colour and everything to do with the fact that one screen is 4K and one is 1080p.
And I never said you couldn't see the difference between the two. You are obviously sitting in the range of distances from which a person can tell the difference between 4K and 1080p.
 
I'm not saying you are a moron, nor am I saying that you cannot see a difference. (Well maybe I am - not the moron part, it all depends on the size of your tv, the resolution and how far back you sit from your tv. :D)

For any given size of tv, there is a distance range that you have to sit in to see the difference. You obviously are sitting within that distance.
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And I never said you couldn't see the difference between the two. You are obviously sitting in the range of distances from which a person can tell the difference between 4K and 1080p.

fair enough. I actually was responding more to the general tone of the "discussion," than your post specifically.
 
My ATV 3 is a dream to use compared to the buggy mess and terrible remote on the ATV4. Scrolling through large lists on the ATV4 is a nightmare.

The remote is a very poor design. The ATV 3 is so much better.
 
I guess I need to buy 4k HDR TV before I get too excited about this. ;) Does 4k HDR even make a big difference compared to 1080p?

I've got the 5k iMac and 1080p video looks horrible. It's similar to watching standard definition TV on a 1080p set. The difference doesn't really become apparent until you're watching lower resolution content on a higher resolution display. 4K content should look sharp but anything 1080p or lower may very likely look worse on a 4K display. It's your choice. As for me, I'll wait until my TV breaks or until most content is streaming in 4k or higher.
 
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