I recently moved across the country and left my Pioneer Pro-710 HD set with the new owners of my house (too heavy to move at 400 lbs). In our new place, I purchased a Sammy HL-R5067W for our living room. The set looks great, but I am finding the limitations of the source signal (DirecTV or Digital cable) on non-hi def programs to be a little jagged/pixelated. I was definitely spoiled by the internal line doubler on the Pro-710, which smoothed out non-hi def sources very well on the 65" set. My question - Does anyone know which 60"+ DLP or LCD rear projection sets are known to have great line doublers? If these are no longer being put in the TV itself, does anyone have a recommendation for an external doubler that is $1,000 or less? Or, what are others doing to improve the look of digital non hi-def sources on big sets? I am going to be purchasing a larger TV for the family room and was considering the larger Samsung, Toshiba, or Sony XBR.