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Old 11-17-2015, 10:31 AM
 
Location: The Berk in Denver, CO USA
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4K and LED HDTV TV Buying Guide
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Old 11-17-2015, 10:45 AM
 
2,563 posts, read 2,871,197 times
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Quote:
Originally Posted by d4g4m View Post
If you decide to go with the 4K TV, make sure you have a modem, router that can handle 4k from Netflix, amazon, utube. And have a internet plan that supplies a lot of gigs a month. 4k eats bandwidth big time. And be advised, just as your cable company compresses 1920x1080 to 1440, you will not receive the full 2160 4k from your isp. There only place you will see full 2160 4k is on the TV demo in the store.
Why won't you see the full 4K from your internet service provider? Haven't they come out with a 4K player?
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Old 11-17-2015, 11:05 AM
 
40,169 posts, read 41,782,366 times
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Quote:
Originally Posted by d4g4m View Post
you will not receive the full 2160 4k from your isp.
If by ISP you mean Comcast etc. they are not going to compress anything unless it's their service. Netflix or whoever will compress it. An HD Blu Ray disc might be compressed using a bitrate of 25mbps, Netflix streams something in the 6 to 8mbps range. They determine how fast your connection is and if it can't handle it they will lower the bitrate/resolution even further.
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Old 11-17-2015, 11:11 AM
 
Location: Greensboro, NC
5,894 posts, read 4,415,601 times
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Quote:
Originally Posted by thecoalman View Post
MPEG4 variants are just more efficient than MPEG2. The issue is the bitrate they are using, by lowering the bitrate they reduce the bandwidth at the expense of quality. For OTA they have ridiculous amount of bandwidth available so it's irrelevant, for cable companies it becomes a priority.


When you are comparing these things you need to compare something with a lot of action; football game, explosions, flickering lights. MPEG and other compressed formats reduce bitrate by reusing information from previous frames. If there is not enough bitrate to compensate for these changes that is where macroblocking occurs.

This is frame grab from lightly compressed DV, 25mbps. that blue light is moving extremely fast.This is interlaced which is why you have those lines, it's actually two positions of the light 1/60th of a second apart. Note how nice and sharp the edges are on the lights.





Compressed using MPEG2, 8mbps. If this was MPEG4 you get the same results with about 2500kbps.See how the edges of the light are little fuzzy.



Compressed using 3mbps which is not enough to compensate for the fast moving light.
Eh. I mean, through the naked eye, and I was comparing a football game by the way, the only difference I could really see was the color saturation. Both pictures were quite sharp on an HD signal. Also, I was sitting about 12 feet away as well. To me, 4K would be most ideal for those who are in graphic design and/or photography. There just isn't enough content out there to justify going with 4K right now. And by the time 4K becomes the standard, the existing 4K TVs that people have purchased will need replacing due to age.
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Old 11-17-2015, 11:14 AM
 
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I just checked my download speed and it's 83.6 mbps. So if I stream UHDTV content over Comcast through the app on my smart TV, I should be getting the full 4K, right?
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Old 11-17-2015, 07:40 PM
 
Location: Sarasota FL
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Forgot to mention in my previous post. When 4k blu-ray movies and the player are released [soon] you will see full 4k 2160 on your TV
Having a high amount of meg download speed means you will probably not have a problem with buffering. It doesn't necessarily mean you will get full 2160 4k. All cable/sat companies compress signal to save bandwidth. The FCC allows it.

Last edited by d4g4m; 11-17-2015 at 08:04 PM..
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Old 11-17-2015, 08:16 PM
 
2,563 posts, read 2,871,197 times
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Quote:
Originally Posted by d4g4m View Post
Forgot to mention in my previous post. When 4k blu-ray movies and the player are released [soon] you will see full 4k 2160 on your TV
Having a high amount of meg download speed means you will probably not have a problem with buffering. It doesn't necessarily mean you will get full 2160 4k. All cable/sat companies compress signal to save bandwidth. The FCC allows it.
So how are you supposed to know what you're getting?
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Old 11-17-2015, 08:44 PM
 
Location: Southern Colorado
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TVs look like a sensational bargain now but they are not built to last anymore according to a television tech that I know. I'd get the larger 1080 set since there is so little 4K material available. There is still a lot of stuff being delivered at ~480.....like DVDs (which may be ~525) True 720 looks just fine on a 65" set.

When your set breaks down in 3-5 years or so....spring for the 4K. Thats my opinion.
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Old 11-17-2015, 09:42 PM
 
2,563 posts, read 2,871,197 times
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Quote:
Originally Posted by ColoGuy View Post
TVs look like a sensational bargain now but they are not built to last anymore according to a television tech that I know. I'd get the larger 1080 set since there is so little 4K material available. There is still a lot of stuff being delivered at ~480.....like DVDs (which may be ~525) True 720 looks just fine on a 65" set.

When your set breaks down in 3-5 years or so....spring for the 4K. Thats my opinion.
By then they'll be selling 8K sets.
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Old 11-18-2015, 09:04 AM
 
Location: Southern Colorado
3,682 posts, read 1,895,857 times
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Yes. When somebody asks a budget related question, one might assume the poster does not have a Washington DC type income. In that case, staying a little behind in cutting edge technology saves a ton of money.

Thank the people who do invest in the latest and greatest....they make innovation a lot more possible. I used to be a photographer that stayed in debt...largely due to "keeping up" with technology.

There is the other extreme of course. Blockbuster was still using DOS when they closed most of their stores. Bit like hanging unto that 19" television delivering a rich 220 lines.

Quote:
Originally Posted by John7777 View Post
By then they'll be selling 8K sets.
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