berchman Loc: South Central PA

[quote= Now you are telling me I will need to sit closer when I buy the 4K 65 inch TV!

[/quote]

Yes, if you want to reap the benefits of 4K and be immersed, you need to sit closer.

Fotoartist Loc: Detroit, Michigan

I understood the reason to Sit Closer to HDTVs when 4K TVs first came out because I had been doing it to take in the maximum photographic detail on my Apple 30" computer monitor. When I applied it to TV viewing everybody thought I was nuts. Even the appliance store salespeople. Their mantra was you have to stand back for TV viewing. These people only echo what they have heard. They weren't using common sense and using their eyes to see no matter how logically I tried to explain the data. Sorta like the present climate. Good to see it only took them a few years to come around to common sense.

Pegasus Loc: Texas Gulf Coast

There's a big difference between a CRT (cathode ray tube) TV and an LDC TV, especially the 4K models. It's all about resolution. With the CRT-type TVs the resolution was quite low. We're talking 480i here, made up of two interlaced fields of 243 lines each. Even the very large TVs had the same low resolution and if you sat close enough, you could actually see the lines. When LCD TVs were first introduced they had the flat panel display set up at those low resolution and if you sat close enough you could actually make out the individual cells. So sitting closer only made the cells bigger, it did not make for a finer picture.

Then the HD phenomena occurred and the resolution jumped to 1280X720 interlaced and eventually culminated in 1920X1080P (progressive scan) and 16:9 format. At that point you could sit up close to your big TV and still get a smooth picture. Computer monitors ran up the resolution road at the same time since it's the same technology and you might remember the progression from VFGA, through SVGA, XGA, WXGA, SXGA and finally to HD. As the resolution increased, you got better use of a flat panel display and you could display a lot more information on these displays with the increased resolution. Amounts of information that could never be reached by CRTs. Of course, after HD, the resolution keeps climbing and the next full step up is UHD 4K at 3840X2160. There are a lot of other smaller increments between HD and UHD, such as something known as 2K, 2048X1536.

Now for the last 3 years, there has been a 55inch 4K UHD 3840X2160 TV on my desk connected to my laptop via an HDMI cable. It sits about 24 inches from my nose and that's where I do most of my work. I can have a spreadsheet open with 200 columns and 120 rows, or all matters of windows. On my left sits my 17 inch HD laptop, in front of me is the 55inch UHD monitor and on my right is another 24inch flat panel with 1920X1280 resolution.

I've come a long way from the days of 24 lines X 80 character monitors.

BTW, if penultimate was a new word for you, I have a few more, but first let's examine it. It actually is made up of 2 words, "paenne" Latin for almost and ultimate. Another similar word is peninsula which is also mate up of two words: "paenne" that we saw earlier and "insula" Latin for island. Put together a peninsula is bit of land that sticks out into a body of water, that's almost an island.

Penultimate is used to denote the one before last like the penultimate chapter in a book, when you're talking about a finite series, but it also means "the top currently of a growing series" like when it was used earlier in this thread to denote that model as being the best or the finest, knowing that something will come along at some point, that will be better than that model. Think of it as this: 4K is the penultimate expression of the state of flat panel resolution. It's currently at the top. But we all know that 8K and better is coming down the road.

Now the new words for you. Antepenultimate; two before last. Preantepenultimate; three before last. Propreantepenultimate; four before last.

NorCal Bohemian

Hi again!

The warning had a real basis, in the fact that a CRT (Cathode Ray Tube) is literally an electron "gun" on a swivel, shooting electrons out the front - to hit and "excite" the phosphorous dots on the glass screen - that creates the picture. The phosphorous didn't stop the "radiation", and the closer to the screen - the more electrons shot into you. Just like light - the inverse square rule applies - and sitting twice the distance from the set would reduce the radiation exposure by four times, as well as reducing your relative size in the "field of fire"!

Magicman

Question: would like to run photos on the 55" Samsung 4k uhd screen when not watching tv. Can someone suggest ways to do that.

bnsf

Use on of the ports as a connection to either dvd or computer. Then change port when you watch tv or movies

bsprague Loc: Lacey, WA, USA

I have a new Samsung TV. I copy photos and videos to a USB thumb drive, plug it into the TV and use the TV's remote to control the "show". You need nothing other than a thumbdrive. I think a portable HDD will work too, but I've not tried it. Pictures have to be JPEGs. RAWs don't work.

Davethehiker Loc: South West Pennsylvania

Magicman

Thanks. GreAt idea and UFO. I will try it.

Davethehiker Loc: South West Pennsylvania

I just visited my son and watched the movie "Avatar" on his 70 inch 3D HD home TV. Wow!! He had the active glasses and they worked fine. My eyes did not tear or burn like they did when I watched the same movie in a theater a few years ago. I think his TV look better than the movie did!

bsprague Loc: Lacey, WA, USA

I have a 55" Sony HD 3D, the player, the glasses and about a dozen movies. It is disappointing that 3D didn't catch on. It is a lot of fun.

For a second 3D movie, find and watch"Hugo".

Fotoartist Loc: Detroit, Michigan

The opening scene of "Hugo" is the 3D highlight of the movie. Unfortunately from there the experience declines. But I guess that's what happens when you open with your best scene.