This has been my experience, though some aspects of CEC are hit or miss, especially depending on the TV, AVR and other device(s). I use an NVidia Shield TV wit

This has been my experience, though some aspects of CEC are hit or miss, especially depending on the TV, AVR and other device(s). I use an NVidia Shield TV with an AVR in my main living space, and a couple others in different rooms. For CEC, some remotes/devices work for everything, others not so much, others still are hit and miss for say volume control, etc.