Hello,Yesterday i purchased SUNHD STB for 7500/- offer price exchanging my Airetl STB.AS they claim, i could not see any provision to connect 5.1 sound to my Philips 5.1 sound system. Phlips home theatre system can accept sound Input as AV only. I wonder how can i get 5.1 sound to philips ssytem....SunHD provides SPDIF output, but i dont know whether it will give 5.1 channel sound outupt.... Also my Philips sytem dont have that port... I can connect HDMI output of SUN HD to my samsung LCD from there i can get sound output in AV... But i can't see really a provision to get sound in 5.1 dolby miode... I am bit disappointed....What are the requirements needed to receive 5.1 sound to any DVD home theatre system..?Any one can help me? I will be thankful...