BDP-S370 - turn off audio over HDMI

[jezahl]

Hi

I have a BDP-S370 connected via HDMI to a Bravia tv, and via optical audio to my av receiver (the receiver does not accept HDMI)

I want to be able to turn off the audio signal over the HMDI cable to the telly, so that I don't have to mute the TV every time I want to watch a film. Is this possible?

Many thanks

Jez