okay I went and asked one of the Formuler Team members about this and I got an answer
There are two versions that work on them Z series models (except nano).
One is a Mobile version with HD quality, and the other is the SD ATV version.
The mobile version requires that your z8 has the Widevine L1 onboard.
Some z8s have this, and all the z8 pros and GTV models have the Widevine.
Google search Widevine and you will see what it is.
The explanation is easy to understand without needing to know alot of the language.
To check if your Z8 has Widevine, go to your Market and in the 'Utilities/ETC' category find the DMR Info app and install.
Open that app to check if the Widevine is onboard.
Next you will need to install the Filelinked app onto your Z8
You can also find that in the Market and in the 'Utilities/ETC' category.
Open the Filelinked app and use code 59240777 for the 2 Formuler versions.
Once you opened the filelinked app and entered that code, you will see the two files there.
Use the OK/Enter button to start the download. Once it is downloaded then the OK/Enter button again to install onto the Z8.
Then you will find the Netflix app or apps on your Launcher screen.
-With the mobile version, you get HD (if the device has Widevine L1).
You would need track pad/cursor to navigate.
-With the SD version, navigation works with the supplied remote easy enough.
SD quality, but not too bad.
thnx to the Team for this info
I almost forgot the most important thing
DONT UPDATE THE NETFLIX APP IF IT ASKS
These apps are version specific to work.
The 2 working versions...
1. netflix.ninja-2.0_build_295-minAPI21-V2.7
2. netflix_4.16.1_ZJ_HDFix-screensize