The SC-65 has come a long way from the old SC-25. The Marvel QDEO video scaler really does a great job of improving picture quality. When you use the microphone to do your speaker calibration, be sure you have it set at ear level since this is where you hear the sound so it balances accordingly. Once you have concluded with the MCACC live with it for a few weeks. Then, if you feel you need to tweek, take the remote, hit the receiver button on the right upper side, hit speaker level and adjust a decibel or two your center or rears to get the results you wish. I have a 7.1 setup and on some better blu-rays, they are encoded with DTS HD-MASTER AUDIO 7.1 so you can really get a room filling experience. Pioneer Elite receivers seem to fill the mid range tones the best compared to Denon or Yamaha. Also, depending on your speakers, you can get really awesome woofer and subwoofer room filling sounds to enhance your listening enjoyment. I have had mine now for 6 months and love it.