Amazon.com: 4K HDMI Splitter 1 in 2 Out, TESmart 2 Way HDMI Splitter Support 4K@60hz, HDR, HDCP, CEC, Compatible with Fire Stick, Apple TV, Xbox, PS4, PS3, Roku Blu-Ray Player (Black) :
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How to Control TV Volume and Power with Your Apple TV Remote
How to Control TV Volume and Power with Your Apple TV Remote
I am not able to turn on HDMI CEC (Control TVs and Receivers) on my Apple TV. Can anyone help me? Detail is in the comment : r/appletv