I am perplexed. I had the s video runnig out from my receiver to the s video 1 input on the Sony and I could get the OSD. I moved the s video to the HD tuner and nothing showed. I moved the svideo back to the Denon. and again, nothing. I ran the s video from my DVD player and got nothing on s video 1 and runny colors on s video 3. Coaxial cable works as do the component videos. I have 2 component video cables going into the T.V., a coaxial cable for the OSD, and an s video from the tuner. The s video only does what I described above. Do any of you have any ideas at all as to what can be wrong. Is the T.V. defective or am I missing something? Thanks in advance for your help.