Hi, just bought the above smart TV and added it to my Sony home cinema amp. Sound is coming out fine for sky HD TV which is input to the amp and output via the HDMI out to the tv's HDMI ARC input. However, the built in apps like Netflix and Amazon do not produce any output in my home cinema amp they only come out through the tv's built in speakers. Does anyone know why the apps do not produce output in my home cinema amp?