iPhone Apple TV remote app is supposed to control TVs. How to make it do that?
This is on the Apple Store site for the Apple TV:
Apple TV 4K - Apple (scroll down)
"iPhone
A multifaceted remote lets you easily play, pause, fast-forward, rewind, and adjust the volume on your TV — all from the Lock Screen of your iPhone or in Control Center. "
But neither I nor Apple's support people have any idea about how to get it to talk to my TV, and there's only an x-ed out mute button on the screen that doesn't do anything.
The TV is a 2-year-old LG OLED that does talk HDMI-CEC.
How do I make it work?
Note that I've tagged Apple TV 4K 1st generation, but I have NFI which generation it is.
TIA
Apple TV 4K (1st generation)