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Fibre optic/4k/youview


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Old 04-04-2016, 22:00
james_taylor3
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Hi all wondering if you could shed some light for me.

Just got a 4k tv which is hdcp 2.2 compatible.

Im wondering if i will get a better quality picture watching a freeview channel through the youview box as opposed to through the co-axial cable i currently use (which is 5 metres long may i add due to position of wall port)

Im thinking of upgrading my internet to fibre optic to catch up with the times. If it quotes "up to 38mb" will the speed usually be fine to stream 4k, i live in a town centre and on my current sky package i get 15mbps from a "up to 17 mbps" connection so think the connection should be quick enough??

Im looking at getting the youview box as its an extra 10 a month to get 27 channels from bt tv plus the youview box for free
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Old 04-04-2016, 23:13
Chris Frost
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A YouView box simply combines Freeview (as delivered via your TV aerial) with a PVR function (record/pause/rewind live TV) + internet delivered content for the catch-up TV bit of it. So I doubt it's going to make much difference for Freeview either way.

The minor difference (if there is any) between the TV's own tuner and the one in the Youview box will be swamped by the huge difference you can make by setting up the TV's picture settings properly and getting rid of any sort of crappy aerial coax lead and replacing it with a piece of Webro WF100 coax and some properly fitted coax plugs.
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Old 04-04-2016, 23:39
emptybox
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You seemingly need a minimum of about 15Mb/s for 4K streaming, and realistically about 20Mb/s to give a bit of elbow room, if someone else in the house starts surfing the web or something.
But I guess it depends on the compression level of the stream.
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Old 05-04-2016, 10:59
Philip Wales
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I know when I started using Amazon's UHD service it said I may experience buffering as I had only 40mbs and they like 50mbs. But thats the only time I saw this message, and it's been fine since. It usually starts in SD, the HD, then 1080p and finally UHD after about 30secs, if i'm watching a series the next episode will usually go into UHD within about 10 secs.
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Old 05-04-2016, 11:57
bobcar
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Im wondering if i will get a better quality picture watching a freeview channel through the youview box as opposed to through the co-axial cable i currently use (which is 5 metres long may i add due to position of wall port)
The length of the coax makes no difference whatsoever to the TV picture quality as long as you are getting it properly i.e.e without picture breakup.
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Old 05-04-2016, 12:22
chrisjr
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Im wondering if i will get a better quality picture watching a freeview channel through the youview box as opposed to through the co-axial cable i currently use (which is 5 metres long may i add due to position of wall port)
And how do you intend getting the aerial signal to the YouView box to watch Freeview if not via the same 5m cable?

The only reason why the YouView box could have a better picture quality is if the image processing circuitry in your TV is totally rubbish and inferior to the equivalent circuitry in the YouView box.

Provided the aerial lead is made from good quality coax with properly terminated decent plugs it will make zero difference to picture quality.
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Old 06-04-2016, 14:57
james_taylor3
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Does anyone have any way i could tell the difference on sd channels between 4k tv's

I find the picture on mine not great for non hd channels but i dont know how much better it can get?? Maybe im expecting too much
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Old 06-04-2016, 16:23
chrisjr
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Does anyone have any way i could tell the difference on sd channels between 4k tv's

I find the picture on mine not great for non hd channels but i dont know how much better it can get?? Maybe im expecting too much
The only way is to get a load of different 4k TVs in the same location and all calibrated to as near as possible the same standard. That means differences in picture processing and ambient lighting are eliminated as far as possible. Then feed all of them the same source signal and sit there and compare one screen with another.

You need to view a selection of TVs under identical (or as close as you can practically get) conditions to get any meaningful idea of how each handles upscaling SD. It is quite possible that you won't find any TV that does what you would consider a decent job so will just have to settle for the "least worst".
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Old 06-04-2016, 16:50
Deacon1972
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Does anyone have any way i could tell the difference on sd channels between 4k tv's

I find the picture on mine not great for non hd channels but i dont know how much better it can get?? Maybe im expecting too much
How far are you seated, if it's optimized for 4k viewing then SD will not look great, if it's for HD viewing SD should look better, sit further back then SD should look good. The problem is there will be a compromise no matter where you sit when watching different formats, unless you move your seating accordingly.

What size tv have you and how far are you sat?
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Old 06-04-2016, 17:12
james_taylor3
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How far are you seated, if it's optimized for 4k viewing then SD will not look great, if it's for HD viewing SD should look better, sit further back then SD should look good. The problem is there will be a compromise no matter where you sit when watching different formats, unless you move your seating accordingly.

What size tv have you and how far are you sat?


55 and sat about 3 metres away i reckon
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