Not sure if this is the right section for this question, but how do you change the audio from the narrated stream to the standard audio stream.

I mean on the sky channels you get two audio streams.
1 mpeg nar
2 mpeg subtitle - sd sky one

I know you can change it with the audio button and manually select the stream but I want it to be on the none narrated stream everytime I switch channels or as default.

Is there a setting somewhere for this.

Thanks