Flickering picture

[Jones_The_Cat]

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@David164 wrote:

Not much change after switching the picture enhanchment settings off. The blue background when they cut to the wide shot on The Chase on ITV1 was flickering during the start of the episode that is on at the moment. I mean i know some graphics on quiz shows are supposed to move but the flickering catches my attention when it happens it never used to happen with Virgin. Just a point to mention that i didn't say before is that I also noticed that it isn't just on the tv this is happening it's also on youtube and other videos i'm watching online so i'm not sure what's gone on since i got rid of Virgin but it's a total nightmare!

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When you say it's also happening on YouTube and other online videos, are these all being watched via the apps on the puck? Does it happen if you look at the same videos via the YouTube app built in to your LG TV?

[Paul+Dray]

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@Jones_The_Cat wrote:

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@Paul+Dray wrote:

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@Jones_The_Cat wrote:

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@David164 wrote:

Yes done that on my settings. No i don't have the UHD/Atmos pack as part of the package. Would you say it's worth me trying the output on 2160p anyway ? 

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You can if you like - all it does is put additional pressure on the puck as it has to upscale the native 1080i streams itself before outputting to your TV. If you leave it on 1080i (and have no need for 4K from the puck) then your TV will do the upscaling, often better than the puck will. 

I could tell the difference with my puck - I found that my TV did the better job of upscaling. 

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Actually just thinking about what was said here again re upscaling duties. You used to be able to set your resolution settings on a sky plus box to a setting which bypassed internal upscaling letting your TV do a better job of it but I don't think Sky Stream pucks allow this. I think you're forced to set a resolution which does the upscaling in the puck. It was actually a thing that held me back from switching to Stream for a while.

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1080i is the native HD resolution. No upscaling takes place on the puck if you set it to output this. If the puck is connected to a 4K TV then the TV will upscale the 1080i it receives from the puck to 4K to fill the screen.

If the puck is connected to an HD TV then no upscaling is necessary from either device.

2160P is the native UHD resolution so any native UHD content will output as such if the puck is set to 2160P. If left on 2160P then any native 1080i HD content will be upscaled by the puck before being output  at 2160P. 

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I don't believe that's correct. Just because the resolution wouldn't need to be changed on an HD tv the puck is still the one processing and sending all content as a 1080 interlaced signal. 

[David164]

What i mean by that is videos on my computer not on the tv itself.

[Paul+Dray]

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@David164 wrote:

What i mean by that is videos on my computer not on the tv itself.

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Err.. you sure your eyes are ok?

[David164]

yep. 

[Jones_The_Cat]

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@Paul+Dray wrote:

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@Jones_The_Cat wrote:

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@Paul+Dray wrote:

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@Jones_The_Cat wrote:

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@David164 wrote:

Yes done that on my settings. No i don't have the UHD/Atmos pack as part of the package. Would you say it's worth me trying the output on 2160p anyway ? 

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You can if you like - all it does is put additional pressure on the puck as it has to upscale the native 1080i streams itself before outputting to your TV. If you leave it on 1080i (and have no need for 4K from the puck) then your TV will do the upscaling, often better than the puck will. 

I could tell the difference with my puck - I found that my TV did the better job of upscaling. 

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Actually just thinking about what was said here again re upscaling duties. You used to be able to set your resolution settings on a sky plus box to a setting which bypassed internal upscaling letting your TV do a better job of it but I don't think Sky Stream pucks allow this. I think you're forced to set a resolution which does the upscaling in the puck. It was actually a thing that held me back from switching to Stream for a while.

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1080i is the native HD resolution. No upscaling takes place on the puck if you set it to output this. If the puck is connected to a 4K TV then the TV will upscale the 1080i it receives from the puck to 4K to fill the screen.

If the puck is connected to an HD TV then no upscaling is necessary from either device.

2160P is the native UHD resolution so any native UHD content will output as such if the puck is set to 2160P. If left on 2160P then any native 1080i HD content will be upscaled by the puck before being output  at 2160P. 

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I don't believe that's correct. Just because the resolution wouldn't need to be changed on an HD tv the puck is still the one processing and sending all content as a 1080 interlaced signal. 

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It is correct. The puck is not upscaling anything if it's receiving a 1080i 50hz stream and is set to output 1080i 50hz to a TV which is only capable of showing 1080i/1080P at best. 

[Paul+Dray]

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@Jones_The_Cat wrote:

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@Paul+Dray wrote:

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@Jones_The_Cat wrote:

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@Paul+Dray wrote:

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@Jones_The_Cat wrote:

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@David164 wrote:

Yes done that on my settings. No i don't have the UHD/Atmos pack as part of the package. Would you say it's worth me trying the output on 2160p anyway ? 

---

You can if you like - all it does is put additional pressure on the puck as it has to upscale the native 1080i streams itself before outputting to your TV. If you leave it on 1080i (and have no need for 4K from the puck) then your TV will do the upscaling, often better than the puck will. 

I could tell the difference with my puck - I found that my TV did the better job of upscaling. 

---

Actually just thinking about what was said here again re upscaling duties. You used to be able to set your resolution settings on a sky plus box to a setting which bypassed internal upscaling letting your TV do a better job of it but I don't think Sky Stream pucks allow this. I think you're forced to set a resolution which does the upscaling in the puck. It was actually a thing that held me back from switching to Stream for a while.

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1080i is the native HD resolution. No upscaling takes place on the puck if you set it to output this. If the puck is connected to a 4K TV then the TV will upscale the 1080i it receives from the puck to 4K to fill the screen.

If the puck is connected to an HD TV then no upscaling is necessary from either device.

2160P is the native UHD resolution so any native UHD content will output as such if the puck is set to 2160P. If left on 2160P then any native 1080i HD content will be upscaled by the puck before being output  at 2160P. 

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I don't believe that's correct. Just because the resolution wouldn't need to be changed on an HD tv the puck is still the one processing and sending all content as a 1080 interlaced signal. 

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It is correct. The puck is not upscaling anything if it's receiving a 1080i 50hz stream and is set to output 1080i 50hz to a TV which is only capable of showing 1080i/1080P at best. 

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Not all content being received by the puck is 1080i

[Jones_The_Cat]

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@Paul+Dray wrote:

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@Jones_The_Cat wrote:

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@Paul+Dray wrote:

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@Jones_The_Cat wrote:

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@Paul+Dray wrote:

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@Jones_The_Cat wrote:

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@David164 wrote:

Yes done that on my settings. No i don't have the UHD/Atmos pack as part of the package. Would you say it's worth me trying the output on 2160p anyway ? 

---

You can if you like - all it does is put additional pressure on the puck as it has to upscale the native 1080i streams itself before outputting to your TV. If you leave it on 1080i (and have no need for 4K from the puck) then your TV will do the upscaling, often better than the puck will. 

I could tell the difference with my puck - I found that my TV did the better job of upscaling. 

---

Actually just thinking about what was said here again re upscaling duties. You used to be able to set your resolution settings on a sky plus box to a setting which bypassed internal upscaling letting your TV do a better job of it but I don't think Sky Stream pucks allow this. I think you're forced to set a resolution which does the upscaling in the puck. It was actually a thing that held me back from switching to Stream for a while.

---

1080i is the native HD resolution. No upscaling takes place on the puck if you set it to output this. If the puck is connected to a 4K TV then the TV will upscale the 1080i it receives from the puck to 4K to fill the screen.

If the puck is connected to an HD TV then no upscaling is necessary from either device.

2160P is the native UHD resolution so any native UHD content will output as such if the puck is set to 2160P. If left on 2160P then any native 1080i HD content will be upscaled by the puck before being output  at 2160P. 

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I don't believe that's correct. Just because the resolution wouldn't need to be changed on an HD tv the puck is still the one processing and sending all content as a 1080 interlaced signal. 

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It is correct. The puck is not upscaling anything if it's receiving a 1080i 50hz stream and is set to output 1080i 50hz to a TV which is only capable of showing 1080i/1080P at best. 

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Not all content being received by the puck is 1080i

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The vast majority of it is. One of the USPs of Sky Stream/Glass is that the live channel streams are in HD. 
I'm not sure what point you're trying to make here any more? 

[Paul+Dray]

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@Jones_The_Cat wrote:

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@Paul+Dray wrote:

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@Jones_The_Cat wrote:

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@Paul+Dray wrote:

---

@Jones_The_Cat wrote:

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@Paul+Dray wrote:

---

@Jones_The_Cat wrote:

---

@David164 wrote:

Yes done that on my settings. No i don't have the UHD/Atmos pack as part of the package. Would you say it's worth me trying the output on 2160p anyway ? 

---

You can if you like - all it does is put additional pressure on the puck as it has to upscale the native 1080i streams itself before outputting to your TV. If you leave it on 1080i (and have no need for 4K from the puck) then your TV will do the upscaling, often better than the puck will. 

I could tell the difference with my puck - I found that my TV did the better job of upscaling. 

---

Actually just thinking about what was said here again re upscaling duties. You used to be able to set your resolution settings on a sky plus box to a setting which bypassed internal upscaling letting your TV do a better job of it but I don't think Sky Stream pucks allow this. I think you're forced to set a resolution which does the upscaling in the puck. It was actually a thing that held me back from switching to Stream for a while.

---

1080i is the native HD resolution. No upscaling takes place on the puck if you set it to output this. If the puck is connected to a 4K TV then the TV will upscale the 1080i it receives from the puck to 4K to fill the screen.

If the puck is connected to an HD TV then no upscaling is necessary from either device.

2160P is the native UHD resolution so any native UHD content will output as such if the puck is set to 2160P. If left on 2160P then any native 1080i HD content will be upscaled by the puck before being output  at 2160P. 

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I don't believe that's correct. Just because the resolution wouldn't need to be changed on an HD tv the puck is still the one processing and sending all content as a 1080 interlaced signal. 

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It is correct. The puck is not upscaling anything if it's receiving a 1080i 50hz stream and is set to output 1080i 50hz to a TV which is only capable of showing 1080i/1080P at best. 

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Not all content being received by the puck is 1080i

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The vast majority of it is. One of the USPs of Sky Stream/Glass is that the live channel streams are in HD. 
I'm not sure what point you're trying to make here any more? 

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I'm not sure my aim was to make any specific point particularly, just that simply saying setting it to 1080i means it's passing through completely original format video data for your connected tv to do all the upscaling and processing isn't entirely accurate. Especially given the fact that Sky will be already turning a lot of SD content from the likes of channels such as Talking Pictures etc in to HD streams before it gets anywhere near your TV.

Sky plus boxes used to pass through the original source format and let your tv do the upscaling and deinterlacing etc.

[David164]

Hi, Any ideas of anything else i could try considering i am still noticing this issue ? It is both on the tv and also on my computer they are both connected to Sky Broadband and there is still no change getting a bit fustrating now i don't know what's happened since changing from Virgin 

[Paul+Dray]

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@David164 wrote:

Hi, Any ideas of anything else i could try considering i am still noticing this issue ? It is both on the tv and also on my computer they are both connected to Sky Broadband and there is still no change getting a bit fustrating now i don't know what's happened since changing from Virgin 

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That you see it on both the TV and on your computer has kind of complicated things really. Whether it's Virgin or Sky supplying you a broadband connection wouldn't affect the picture quality of video streams. All it could potentially do is affect broadband speed/reliability but that would show up as struggling to download or stream video content not make parts of an image flicker.

The only other thing that crossed my mind was wondering if you've changed your lighting in your home recently? Maybe from Halogen bulbs to LED's and your eyes are adapting to the change. Honestly I know it's a long shot but I can't think what else would cause the same issue on multiple screens. YouTube on a computer mind you isn't a good source to judge video as it's dependent on the source, compression level and the uploaders technical ability. 

[David164]

I know i find it very bizarre it's not constant flickering only occurs in certain shots during a program. No not changed any lighting in the home recently the ones we have up at the moment have been up a while. Only thing i can think of myself is that it's the program itself but then that doesn't explain why i never noticed it when we had virgin. 

I will attach a video here for you to see: This has been screen recorded off my computer hopefully it will allow you to watch it. When they cut to the clip with Ant and Dec the Gold bars behind them look like they are flickering. (Video is supposed to have no audio) 

https://share.vidyard.com/watch/axebNyL44b4JVjdKtyyFGr?

[Paul+Dray]

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@David164 wrote:

I know i find it very bizarre it's not constant flickering only occurs in certain shots during a program. No not changed any lighting in the home recently the ones we have up at the moment have been up a while. Only thing i can think of myself is that it's the program itself but then that doesn't explain why i never noticed it when we had virgin. 

I will attach a video here for you to see: This has been screen recorded off my computer hopefully it will allow you to watch it. When they cut to the clip with Ant and Dec the Gold bars behind them look like they are flickering. (Video is supposed to have no audio) 

https://share.vidyard.com/watch/axebNyL44b4JVjdKtyyFGr?

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I think I know what bit you refer to. The yellow/gold bar lines behind A&D particularly the first few top lines. I wouldn't call that flickering though but more strong compression causing poorly gradiented colour lines. 

What were you using to play this show on your computer? The ITV App or from the ITV website?

Another question.. what speed was your Virgin Broadband and what speed is your Sky Broadband now?

[David164]

Yes that's correct exactly what i was on about. I was playing this off ITVX which is itv's newest streaming service they are offering. Not sure about the speeds would have to check this and get back to you. 

In the meantime here is a video i got from a show called Deal Or No Deal this time on the TV where the same thing is happening with what i call flickering graphics. If you look at the back wall the red background as Rochelle is opening her box there are lines going through the graphics. 

https://drive.google.com/file/d/1l6CKehzQBjIY2QtbgBkJM_s8Mh4z9Y_B/view

[Jones_The_Cat]

@David164 

I think what you are noticing in both cases here is a low resolution LCD screen being used in the studio to show a range of graphic backgrounds. It's a cheap way of making a studio background look interesting and on low-budget gameshows they use  screens which are so low resolution that the pixels which make up the image are visible. This is what you're seeing behind Rochelle on Deal or No Deal and behind Ant & Dec. 

It may be that you just haven't noticed them before or are watching in a resolution which is making them look sharper and therefore more noticeable.