I have the Sony KF50WE610 with Cablevision as my content supplier and an SA4200HD box. When I first hooked it up, the HDTV channels looked spectacular but the regular SD channels looked only average and the lower end analog channels looked lousy (worse than they looked when I had direct tv). I did an experiment this weekend that produced much improved results for the SD quality. I split the cable and kept one side of the cable for component through the HD box and the other side straight into the coaxial connection bypassing the SA4200 box. While I can't use the guide or get more than basic cable channels on the coaxial connection, the channels that I can get, mostly the low end analog channels including the major networks look far better than they ever looked watching them through the SA4200HD box no matter how I played around with the settings in the box. I'm guessing that I am getting improvement because there is no analog to digital back to analog conversion through the box. Has anyone tried this and gotten similar results??