Emm..
Iinm, Shield TV DV support is similar to Apple TV 4K. Both can't do full(P7 double layer) DV and will falback to HDR10. Meanwhile, CCwGTV can do Full DV.

Apparently, there is another issue with Plex(server) where HW transcoding is broken and no fix yet.

Are you using Wifi or dedicated ethernet? I used a USB hub with Power Delivery to get a USB ethernet for the CCwGTV.

That's the problem currently there's no device that can do everything without any limitations. Each device has some kind of issue even though if it support full DV. 

Did you try using SmartTubeNext to play same YT video?

u guys watch DV in MP4 or MKV? cos MKV one plex i dont think can handle, only Kodi can if not mistaken on my shield tube. urs is pro version should have no much issue i think. Shield tube is laggy and cannot support high bitrate file because of the puny ram.

ah ok, that is plex for nvidia shield only? or lg tv one? Now i only use webOS plex to watch lol, cos have no much issue running MP4 them compare to shield tube. prefer less hassle nowadays, only time hit the wall is when play trueHD, end up using xbox plex app to watch cos can passthru trueHD lol.

Most of my Plex stuffs are anime, and kodi can do animated subtitle without transcoding. Hence why I use kodi for most part. 

Only for normal text. Kodi app on android still can't process .ass subtitles that has custom fonts and animated effects. It will drop off any stylings, and just display everything at the bottom.

For example

Plex app will display it with the default Arial font


Kodi app will correctly render the embedded font and size in the subtitle file


Also, Plex app just straight up ignored this part


while Kodi properly shows the animated effects

Yeah, but in some animes, loosing the styling also looses on screen information. Like this for example:

Not only Plex app won't show these infos, but the subtitle on the top would also be missing as it has a hard time processing subtitles with timing that overlap with each other


So yeah, I only use the app for non animes. For animes, I have to use kodi or transcode 

1. The interface is render at 1080p same as CCwGTV. Probably due to NVIDIA upscaling it looks better or due to different type of launcher being used.
2. Youtube/Stadia HDR use VP9.2 codec which Shield TV SoC(Tegra X1/+) do not support and the CPU is not capable enough to play it smoothly using software acceleration. Only manage to play it smoothly max at 720p.
3. It will be awesome if NVIDIA able to removed it but unfortunately they can't. The Discover UI is available on Shield TV but not Malaysia so ya VPN is needed to activate it but it will take some time or after few reboots. Do make sure all apps are updated especially Android TV Home, Android TV Core Services and Google Play Service.

My recommendation:
1. Disable auto system update. (Only update after reviewing feedbacks)
2. Since you are using Plex so better to disable auto app update on Google Play Store because they are pretty good at screwing up.. 😂
3. Disable IPv6. (Some streaming service that don't support IPv6 will stop working)

1. Oh.. you are referring to screenshot then yes NVIDIA added the feature to capture screenshot with upscaling(if available) but the native system UI is still max at 1080p and the rest is upscaling. Need to wait for Android TV 12 for proper 4K UI.
2. Ya, nothing can be done unless they built new SoC and add AV1 support.
3. That because Google TV Home UI is always active and background service is always ready to ping Google server like using streaming apps meanwhile Discover UI need to be activated by the server first.

oh? I instantly hated that new UI. But to be fair, I don't subscribe to any streaming services, and it keeps pointing me to stuffs that you can't even access in SEA. I had to ask reddit on how to disable that on my CwGTV

Just to clarify on Dolby Vision Profile 7, there are two category:
1. P7 Dual Track/Dual Layer - Shield TV '19 will playback the file but in HDR10.
2. P7 Single Track/Dual Layer - Shield TV '19 will playback the file but it will ignore FEL data. In this case the TV will show DV tag and the output is similar to DV Profile 5 but better.

So in short, Shield TV '19 do not actually support and output real DV Profile 7.
Based on what i have read, you'll only notice the differences if you have seen real DV P7 output. 

There are more info on this matter involving Shield TV but I strongly advise not to do more research on this..😅

I'm referring to Shield TV '19 hardware support tor DV.
Even if the media app support full DV playback it will still depends on the real hardware capabilities to process the data for output.

I don't think so from what i understood for full DV P7 playback, the device need to support dual decoder which is something that Amlogic SoC can do.

Even if it has been 'hacked' they still need the app to read the new method/format. All the existing apps are based on standard SDK that only 'read' format that is provided by Dolby.

There is another method to improve dual layer processing with TV-led(if the TV support). Shield TV support both Player-led and TV-led mode but it is choosen automatically based on EDID. According to NVIDIA, there's no plan to add option to manually select the mode at this time.

Can you point to me where is this hybrid single layer profile 7 documentation. I can't find it.
TV will show DV tag whenever there is media which contain DV data but TV won't/can't provide specific information on what type of data available on the media file.

The FEL contain the real DV information which only BD player, Amlogic SoC and iinm some TV able to process and output because the device need to able to decode both media and data at the same time.