topic Re: Flickering UHD Sky channels in Sky Q

Flickering UHD Sky channels

Julian+Anthony — Sun, 05 Mar 2023 19:17:06 GMT

The TV screen flashes or flickers every now and then only when watching Sky UHD channels - very annoying.

There is clearly.a problem with the Sky box, everything else is set up correctly and works with other UHD sources well.

I have read discussion of this problem before, but I have not seen any solutions other than replacing the Q2TB box. Is there a less drastic solution that anybody is aware of please?

Does anybody know why it happens or what causes it? It looks like the UHD or HDR perhaps, just stops for a tenth of a second or so. I can't think why a box designed to cope with UHD should be unable to do so?

Any help gratefully received.

Regards,

Julian

Re: Flickering UHD Sky channels

best+of+the+best — Sun, 05 Mar 2023 19:27:09 GMT

@Julian+Anthony wrote:
The TV screen flashes or flickers every now and then only when watching Sky UHD channels - very annoying.

There is clearly.a problem with the Sky box, everything else is set up correctly and works with other UHD sources well.

I have read discussion of this problem before, but I have not seen any solutions other than replacing the Q2TB box. Is there a less drastic solution that anybody is aware of please?

Does anybody know why it happens or what causes it? It looks like the UHD or HDR perhaps, just stops for a tenth of a second or so. I can't think why a box designed to cope with UHD should be unable to do so?

Any help gratefully received.

Regards,

Julian

@Julian+Anthony not really noticed it to tell you the truth watched F1 weeked in UHD without issues Sky Q 2TB issued 2016

Would have watched the Liverpool v Manu in glorious UHD but was happy to watch in HD considering the score forgot to change over lol

Re: Flickering UHD Sky channels

PandJ2020 — Sun, 05 Mar 2023 20:04:36 GMT

What HDMI cable are you using?

Re: Flickering UHD Sky channels

Laing1 — Sun, 05 Mar 2023 20:05:55 GMT

@Julian+Anthony wrote:

The TV screen flashes or flickers every now and then only when watching Sky UHD channels - very annoying.

There is clearly.a problem with the Sky box, everything else is set up correctly and works with other UHD sources well.

I have read discussion of this problem before, but I have not seen any solutions other than replacing the Q2TB box. Is there a less drastic solution that anybody is aware of please?

Does anybody know why it happens or what causes it? It looks like the UHD or HDR perhaps, just stops for a tenth of a second or so. I can't think why a box designed to cope with UHD should be unable to do so?

Any help gratefully received.

Regards,

Julian

@Julian+Anthony it's not always a problem with the Sky Q box years ago a few different TV's makes and models had a similiar problem and it was solved by a software/firmware update to the TV's provided by the TV makers.

Last year certain models of LG TV's had a problem which was found to be a change in the chips used in the TV's again LG releasew a software/firmware upgrade which sorted the problems

Re: Flickering UHD Sky channels

Julian+Anthony — Tue, 07 Mar 2023 02:07:53 GMT

HDMI cable is a good thought. I bought a new 4k 0.5m cable, but I can try some others to see if that makes a difference.

Thanks,

Julian

Re: Flickering UHD Sky channels

bonkersrwj — Sat, 09 Sep 2023 18:45:23 GMT

Did you get the issue fixed at all, in the end?

Re: Flickering UHD Sky channels

Dazzasky — Sun, 24 Dec 2023 07:37:11 GMT

There is clearly a problem with quality control with some Sky UHD content. I've seen very bad flickering with The Blacklist and also Gangs Of London. I had it on Sky Q and now on Sky Stream and it is replicated on 3 different tvs. It is extremely distracting.

Re: Flickering UHD Sky channels

Slade5 — Thu, 09 Jan 2025 22:57:59 GMT

I have this problem with my Samsung TV. Model QE65QN900D . I've tried every setting the tv has, bought new cables hdmi 2.1. Also can't watch disney plus on the sky app, screen constantly goes black. Makes,me wonder my sky q,box is probably about 6 years old is it just dated technology? All the tv apps work great hd channels no issue uhd channels are really annoying I'm sure sky charge me for the pressure as well

Re: Flickering UHD Sky channels

Hyperway — Wed, 26 Feb 2025 13:21:17 GMT

Exactly the same flickering on all uhd channels, really annoying. No issues anywhere else with either hd or uhd content other than on my sky box, shocker.

Re: Flickering UHD Sky channels

Slade5 — Wed, 26 Feb 2025 14:03:35 GMT

They sent me a new box, had no effect. Had samsung support take over my tv and change some settings, no effect. Samsung want me to record it and email them the video. I've tried several Hdmi cables. The original hdmi cable that come with the sky box is the best. It is really frustrating. It can only be an input signal that's causing it

Re: Flickering UHD Sky channels

LFCAW — Sun, 21 Sep 2025 16:56:29 GMT

I've noticed this happening with mine. I've just purchased a new sky q 2tb box with uhd and a new Phillips TV 2025. I'm wondering if it could be the lnb? Or wideband one that's used for q? I've got a Greene king I think it is, hdmi cable and tried sky's pink one and neither stop this issue.

Re: Flickering UHD Sky channels

Slade5 — Sun, 21 Sep 2025 19:15:28 GMT

I persisted until last week but just cancelled UHD it was ruining my life im happy now. I think ill wait for a new version of the sky q box if they ever do one

Re: Flickering UHD Sky channels

Chodley — Sun, 21 Sep 2025 21:16:47 GMT

@Slade5 wrote:
I persisted until last week but just cancelled UHD it was ruining my life im happy now. I think ill wait for a new version of the sky q box if they ever do one

They won't

But the current boxes do UHD absolutely fine if the TV cooperates.

Re: Flickering UHD Sky channels

TimmyBGood — Sun, 21 Sep 2025 21:24:00 GMT

@Slade5 wrote:

I think ill wait for a new version of the sky q box if they ever do one

Given Comcast has decided streaming is the future, that's extremely unlikely. Satellite television broadcasting to the UK & RoI will probably cease before the end of this decade.

Re: Flickering UHD Sky channels

LFCAW — Mon, 22 Sep 2025 01:24:39 GMT

I'll refuse to swap to streaming. I love Q and I'm set in my ways with the TV guide and recording facility. I think I'll just persevere with UHD jumping. I only notice the sky sports box jumping, otherwise nothing, apart from the HDR message at the bottom. Brand new Philips TV also, so it's very strange.

Re: Flickering UHD Sky channels

Chodley — Mon, 22 Sep 2025 03:19:48 GMT

Like, as in this Philips?

Re: Flickering UHD Sky channels

LFCAW — Mon, 22 Sep 2025 06:26:10 GMT

The ambilight one.

Re: Flickering UHD Sky channels

TimmyBGood — Mon, 22 Sep 2025 06:33:17 GMT

@LFCAW wrote:

I'll refuse to swap to streaming.

https://www.ispreview.co.uk/index.php/2024/05/ofcom-uk-examine-future-of-tv-distribution-in-a-broadband-world.html

Re: Flickering UHD Sky channels

Slade5 — Mon, 22 Sep 2025 06:46:06 GMT

My screen just did a bright flash, I tried for a year different settings different cables I had samsung support change things remotely all tv apps work perfectly in 4k ps5 no problems. I just gave up it was causing me to much bother. It's probably the tv, I was watching the England game on Itv the other week and England's kit was blue I pretty much had turn the screen to standard to see a white top i have the QE65QN900DTXXU Probably the last high end samsung TV I will buy

Re: Flickering UHD Sky channels

LFCAW — Mon, 22 Sep 2025 07:08:22 GMT

Agree, I think it's the TV rather than the sky box as the HDR message that appears on mine is the TV and it only happens during UHD channels on sky q box. I've tried 8bit and 10bit and auto, and different HDMI leads but no change. It is annoying and I need to figure what's causing it.