It didn’t work for me until around aug 2018 when Freeviewnz released their new app
It is not installed from the App Store instead it seems to come over the air. Or the tv is instructed to download by the broadcaster(s)
Things to note: when you power on the tv it takes a while can be up to a minute until the Freeview app starts working.
The old app version used to have a pop up that happened to tell you it is loaded and available. This latest version does not do that so you have to keep retrying the left arrow, or red or green buttons. Then eventually it loads
The on demand is still patchy. At least the program now loads after the advertising. But may not play all the way through. This could be my model tv issue (don’t think my internet as 100meg download speed)
It’s nice to have the Freeviewnz guide back.
Good luck all