A few irritating 2020 bits: Disney+ and AppleTV+ mostly use DV on their newer titles. Samsung TVs usually give sub-optimal pictures with DV but the real stinger is that you can’t turn it off! An AppleTV 4K box allows you to do that, so, you can watch DV content in 4K SDR with acceptable colour over an HDMI connection. But, a lesser stinger is that the AppleTV 4K box gives a sub-optimal picture with HDR10+ content! But, at least, you can switch the box to 4K SDR manually to watch that in acceptable colour. (Tip: set the AppleTV 4K box video to always default to 4K SDR and enable Range Matching (so, it auto-switches to HDR for DV) then turn off Range Matching for those rare HDR10+ titles. Remember to turn Range Matching back on again, afterwards!) That’s my opinion. Please correct any factual mistakes! ... View more

HDR+ is a version of HDR. HLG, HDR+ and DV are all enhanced versions of HDR.  The current basic version of HDR is HDR10.  Some people use the generic term HDR when they really mean the specific, basic version called HDR10. I.e. the un-enhanced version of HDR.  AFAIK! ... View more

Yes specked for DolbyVision. I think they put a searchlight outside the window. A few years back they used to go to great lengths to AVOID these effects ... View more

I replaced my Samsung with a Sony LED which has lots of Nits. It fixes the problem and is great for daytime TV. Even though I have an AppleTV box which can switch to 4K SDR. I got fed up with switching for AppleTV+ as well as Netflix. It seems fashionable for directors to produce clichéd "atmospheric" dark scenes so this probably adds to to the problem. Samsung's reluctance to support DolbyVision must be down to some EO's ego-trip.  ... View more

But it might prevent the set switching to HDR10 which can result in darkness (while retaining 4k resolution) ... View more

You say "I'm saying people are assigning way too much importance to it versus what actually matters in HDR quality" You are playing with words again: How much importance is "too much importance"? It's meaningless except as a way to derogate DV. I.e. a way to suggest that it isn't important at all. "what  actually matters" suggests that DV doesnt matter. Your attempt at tech-splaining to us lesser intelligences just consist of giving your opinion which just seems to be an attempt to support Samsung's choice. The title of the thread is "Samsung, you have to introduce dolby vision" It's difficult to see why you would choose to oppose that request? If you watch DV streams why would you buy a set that doesnt support DV?   ... View more

You have a lot of generalisations in your post which skew your arguments in apologising for Samsung.   If you have a high end set with no Dolby Vision then you will not correctly see scenes in DV streaming content where the film maker has adjusted their settings on a scene by scene basis.   If you have a budget set, then any form of enhanced HDR will help compensate for your lack of Nits (light output) when compared to HDR10. But how many streaming titles are available in Samsung’s HDR10+ as compared to those in Dolby Vision.   I suspect that many (e.g. Netflix, Apple+, Disney+) content producers and manufacturers wish to future proof their products by catering for next year’s 10 and 12 bit screens. The fact that they are willing to pay cash to Dolby for the use of DV speaks volumes. Or, are these billion-dollar companies as stupid as you seem think contributors in this thread are? Why would anyone wanting to watch titles in DV buy a non-DV set? However much you argue, it’s simply illogical. “I want to watch DV streams so I’ll buy a non-DV set” ? ... View more

If it's any help: https://www.displayspecifications.com shows the brightness of many models in Candelas (Nits) and I'm thinking that to avoid "darkness issues" having a lot of Nits might be a good thing?   ... View more

randy-312 You have to be careful about reviews. How many have you read about Samsung TVs that mention their weakness with DolbyVision content - it's like the elephant in the room. Mostly it doesn't pay reviewers to highlight important negative attributes so they just eulogise and pick some minor defect to criticise so as to appear "balanced" ... View more

Mine works  OK but in the past I have found that the TV learns what to do CEC-wise and memorises it. Any change may make it start anew.   I have found that unplugging all power leads, pausing, then reconnecting leaving the TV to last with pauses between each reconnection works best. Sometimes I have repeated it several times! And then keep turning the ATV box on and off.   Swearing may or may not help. And even less helpful is my memory - TV first or last? Curses! My sympathies as it really is a pain - but it always works in the end. Maybe that's down to the swearing? ... View more

I had this pointed out to me - it’s a bit irrelevant to this discussion but I’ll mention it for completeness: There is another flavour of HDR called HLG - Hybrid Log Gamma. The BBC seems to use it as it will display well on old SDR-only TV sets as well as on HDR-enabled ones. HLG HDR shouldn’t cause problems with Samsung TVs. ... View more

Netflix and Apple TV+ will usually stream their HDR content to your TV set in DolbyVision format. At present, most Samsung TVs don’t support DolbyVision. Amazon and the BBC use HDR formats which Samsung does support. The lack of quality you see on DolbyVision videos will vary from video to video. ... View more

Thanks espenT I had foolishly thought that HLG was a minor format only supported by LG television sets and ignored it  I now see that it's Hybrid Log Gamma  HDR and quite significant as it's used by the BBC to provide a format which will display optimally on most brand s of both SDR-only and HDR enabled television.   Thanks for putting me right! ... View more

Thanks, chopples123. I had completed forgotten that there *was* an actual HDR+ setting which seemed to try to emulate HDR. Sorry for going off topic. ... View more

HDR increases the number of shades of colour possible. So, it reduces banding (stripes) in shading giving a more smoothly graduated effect. Among other things. There’s three main flavours of HDR: HDR10 the vanilla version HDR10+ which is Samsung’s enhanced version (favoured by Amazon Video) HDR Dolby Vision which is the competing enhanced version (favoured by Netflix and Apple TV+) It’s getting a bit like the Betamax vs VHS video-tape wars. (If you remember video-tape!) ... View more

I found for a different sound bar that it would pass, via ARC, a Chroma 4:2:0 signal but not a 4:4:4 one. Presumably a bandwidth issue. I resorted to using optical sound rather than HDMI. It wasn’t easy to figure out so you have my sympathy. Sorry if that’s not much help! ... View more

Netflix uses Dolby Vision for it’s HDR content. Most Samsung TVs don’t work well with Dolby Vision so there seems to be nothing you can do if that’s the problem. (Besides watching in SDR if you can. ) Amazon stuff in HDR10+ should be OK. ... View more

Apple TV+ starts on Friday. But it's choice of HDR format won't exactly have Samsung-afflicted viewers jumping for joy.   (Note that if you have an Apple TV box you can set it to 4K SDR and enable Match Range to watch stuff in HDR10 and HDR10+ and then turn off Match Range for stuff in Dolby Vision and watch that in SDR. Rather tedious!)   ... View more

Things only seem to get worse for disgruntled Samsung owners. The Apple TV+ streaming channel opening on Nov 1st will use Dolby Vision HDR. As, by chance, I am eligible for a year's free subscription I was hoping they would use HDR10+ instead.  Rather naive of me to expect Apple to support the Samsung standard as they seem to spend a lot of time suing each other! ... View more

Kellyw If your problem is due to Dolby Vision, the only not very helpful answer I have is to send back the firestick and buy an AppleTV 4K instead. It probably costs 3 times as much but I think that at present you get 12 months of the Apple TV+ channel for free which is worth £60. This allows you to manually switch off HDR when a Dolby Vision video renders badly. (But retains 4K resolution) You may be able to do similar with a firestick but I have no experience of one. This is IMHO. Netflix or Samsung might bring out a fix tomorrow- or never   ... View more

ikramkhasim. Yes, I noticed that Raising Dion looked the same with and without HDR (both 4K) even though it claims to be in Dolby Vision. Which is unusual. So, either they are wrong or they have somehow tweaked the Dolby Vision so that it doesn’t give Samsungs indigestion Confusing! ... View more

UFC-FAN does the problem occur with e.g. Amazon and Youtube or just with Netflix? ... View more

I made a feature request to Samsung asking if they could provide a way to switch their telly to 4K SDR when viewing Dolby Vision content. This is their reply. I don’t understand it but I think it is a way of saying “No!” .... “please be advised that there's no settings from the TV that we can disable to affect the resolution of the programs from the applications such as Netflix. If you wish to downgrade the content's resolution you need to change this from the application itself, as well as enabling and disabling the HDR effect.” .... Resolution?! Note that I use an AppleTV box which I can manually switch down to SDR  for Netflix Dolby Vision content. Thus, losing the darkness but also the HDR benefits.  ... View more

@ikramkhasim wrote: Titles that use HDR10 like 'Star Trek: Discovery' and 'Rotten' all produce great pictures as how HDR is intended to be.   --------------------------- The Netflix site seems to say that those are both Dolby Vision   ... View more

There's: #HDR Dolby vision #HDR 10+ #HDR 10 which is the basic HDR of which the above two are enhancements. Working out which you are getting is pretty hard but for me it seems that, if you look in the tellys gamma setting in Expert Settings while watching a video, HD and Non-HDR-UHD show BT1886 while HDR shows ST2084. I don't see how to tell if you are getting HDR10 or HDR10+.  I believe the NowTV boxes don't do Dolby Vision or HDR 10+ so maybe NowTV outputs its streams as vanilla HDR10? I also note that on Prime you can stream the same title (e.g. Goliath) as HD or UHD-HDR depending on where you access it from in the listings. Confusing.  There is a list of Netflix content that has HDR here: https://hd-report.com/list-of-4k-ultra-hd-movies-tv-shows-on-netflix/ ... View more

Since I made my origional post it has been pointed out that it appears to be impossible to switch a modern Samsung TV to use SDR when viewing Netflix HDR content formatted in Dolby Vision when using the Samsung built-in Netflix smart app. So there is no way to prevent the resulting poor picture quality. I have edited my original post at the start of this thread. My apologies if  I have misled you.  It's bad enough that Samsung don't support Dolby Vision HDR. It's worse still that we can't even downgrade to SDR to stop Netflix sending us Dolby Vision. It's a bit like paying for the privilege of hitting yourself on the head with a hammer! ... View more

@ikramkhasim wrote: I am unable to turn off HDR using that setting because the Netflix app on the TV is not an "external device" and also there are only options to turn on or off with HDMI inputs. Unless there's something else I'm missing. TV is NU7100. ikramkhasim: You are correct. I apologise. Maybe (?) it was possible to turn off HDR in the Netflix smart app on my old Samsung using the HDR+ setting in Expert Settings (EDIT: NO, I'M WRONG AGAIN!) but nowadays the only Setting to control HDR seems to be Input Signal+ which, as you point out, only seems to affect content input from an HDMI connection and not that from the telly's smart Netflix app . It would seem that the only way to turn HDR off for Netflix is to watch via an AppleTV or Firestick or similar (or perhaps a smart DVD player) I had a quick Google but although I found similar questions I found no solutions. I am sorry to have wasted people's time and will try to edit my original post in a way that doesn't add further confusion.    ... View more

The Tall Grass is outputted by Netflix in the Dolby Vision format of HDR. Most Samsung tellys are incompatible with this format. If using the telly's smart Netflix app, turn off HDR. If using an AppleTV, set the AppleTV to SDR. Remember to reset after watching. See first post in this thread for more info.  ... View more

Thanks for taking the time to reply, James, but I was really asking if anyone knew the difference between the two available options, Gain and Offset i.e. the different meanings of “High” and “Low” level intensity in the context of the White Balance settings on my EU55RU7400 telly. Kind regards, Pat. ... View more