New to ATV... I’m trying to use my google home to cast movies I know are 4K hdr but it never switches to HDR. I also used my phone to cast an HDR movie through VUDU and it still wouldn’t switch to HDR. I know there’s the YouTube work around but is that the only way??? Netflix does cast it in HDR FWIW.

If I purchased a Chromecast Ultra instead, would these same movies cast in HDR???