I recently purchased a s video cable for $50 that the original owner paid $150 for as my telstra decoder only has s video on the back of it as well as the Yellow RCA.
And i have a HDMI cable running from the dvd recorder to the tv.
Im running the s video cable from the decoder into the back of the dvd recorder and the picture comes out of the HDMI cable to the tv and i have noticed with loads of trials of my own that there seems to be very very little difference between the picture via either cable, which is making me wonder is HDMI turning out to be a load of hype. Im watching through a LCD Sony tv and no matter what i do with the settings the picture is still as clear with either cable.
Be very interested in your comments in regard to this setup.