Does anyone have any advice about the problems I'm having with controlling the volume for my tv with my Apple TV 4 remote? I went to the Apple Store and according to them it is because my HDMI cable or HDMI input in my tv isn't good enough. But I bought a new HDMI 2.0 cable and my tv is just 2 years old and has HDMI-CEC. My remote is able to turn the tv on and off, and it is operating according to the ' learn control' test, but... it still doesn't work. Would love to use only 1 remote (I only use the Apple Tv for my tv).