5.1 is only available for the tuner. There is not HDMI passthrough that I'm aware of on any of the 2010 model TVs.
I recently bought a Samsung 5.1 speaker system "Samsung HT-C450N". I connected it to my 1 year old Samsung 37" TV. My main goal was to send both my Pc and Xbox through HDMI to the TV, then send the 5.1 from the Tv to the speaker system. I seem to be only getting stereo.
Please tell me that the TV can send 5.1 form the HDMI down the toslink?
I dont want to have to go back to analogue as its so messy. I though an optical cable would be way better than 3 analogue cables?