HDR though the Cast input?
I've seen HDR content though my Samsung player with a 4K Blu-ray.
I've seen a YouTube HDR file (the Life of Pi trailer) downloaded to a USB stick, and then played back though the USB input on the Samsung.
In both of the above, the Vizio's Cast app showed HDR as "on."
Now, using the YouTube Cast app, I've tried the Life of Pi trailer, which does play as a 4K file (as shown in the Cast app), but no HDR. Ditto for the other HDR-tagged YouTube files.
This seems really unfortunate, but is hardly surprising since there is no "Color Subsampling" option for the Cast input.
Am I missing something?
Samsung UBD-KM85c 4K Ultra HD Streaming Blu-ray Player