tata sky HD must be havin coax as well a an optical out for digital audio
No HDMI will still carry both audio+video irrespective of your using co-ax or L-R. Easiest way is reduce volume of to ZERO.My Tata Sky HD box is hooked to my plasmi via HDMI. Now if I use the co-ax output, will the sound from HDMi get disabled automatically, or is the box capable to supporting 2 sound outputs simultaneously. I mean I don't want to switch on 5.1 speakers for listening to the headlines.