Hi Notty Unfortunately I am connecting to an AVR (Denon) which then goes in to HDMI 4 ARC on the one connect box. Check your HDMI UHD colour setting in you TV picture expert settings, make sure this is set to on for the HDMI port you are using. Also are you sure your Sky Q box is compatible as not all are.  ... View more

Have you tried pressing the home button on your remote, move left to the settings cog and then up to sound output. You can cycle through the different sound outputs. I have all divices plugged in AVR and one HDMI to my one connect box. I tried this and it works the only issue I had was when I went from TV audio back to HDMI audio I had to re select cbl/sat on  my receiver for the audio to play through my speakers. I'd imagine doing that would be less annoying than the HDR not auto switching. I think you've got a project for the weekend pencilled in!!      ... View more

I'm not 100% sure but there might be 2 types of pass through. The one that passes the video signal when the receiver is in standby, and one where when the source is selected the receiver has no influence over the video signal being sent to it and passes it to the TV for it to upscale the picture etc. Only the sound for this source would be handled by the receiver. ... View more

My sky q goes through my receiver (Denon AVR x2400h) and the HDR switches automatically. I can't check right now but I'm sure my receiver is set to pass through if that helps.  ... View more

I can confirm that my KS8000 is recognising the HDR signal being sent from the Sky Q box. I have a 2TB box with external power brick and my TV is on firmware 1242. ... View more