With SD its pretty much what you see is what you get. Although having the set calibrated by an ISF tech could garner better pq via SD, but will definitely improve pq via HD/DVD. With your particular display the critical areas of concern are with the convergence, geometry and overscan. More than likely the areas will need to be addressed during calibration. Obviously other parts of the calibration: Grayscale, chroma, gamma etc. will increase performance/PQ as well. You will probably gain a modest increase in pq via SD but a substantial gain in DVD and HD if you have it.