I'm considering the tivo stream 4k and the Chromecast with Google TV.

The thing is, my TV does have HDMI ARC, but it doesn't support HDMI-CEC volume control (however the CEC on-off switch do work). And more special is that it doesn't support IR so there's no way I can set the remote to control volume with the IR feature.

With the shield tv box (I use it for my sitting room TV), I can set it to adjust volume indepent of the TV. So I cant use the shield remote alone.

I'd like to know if the tivo or the chromecast with google tv has the standalone volume feature, i.e. I can control the its volume independent of the TV volume.

I don't know if I've made myself clear, hope someone can test it for me, thanks.