Thank you for your involvement. However, it seems that the problem is
with the SkyShowtime app installed on the Chromecast because I also have
the SkyShowtime app installed directly on the LG TV and that works
correctly in terms of 5.1 sound.It's inc...
I have exactly the same problem, the 5.1 sound only doesn't work in the
Skyshowtime app, in the other apps it works perfectly (Netflix, Amazon
Prime and Max)