I think if the potential owner of 875 did bother to read Integra DTC 9.8 Manual, they wouldnt have asked that much questions. Obviously even top of the line pre pro doesnt offer any other adjustment to the video except for the output resolution can be set. Of course, there might be a secret menu which nobody know.
What is my real concern is, the improvement of the SDTV and sd dvds by using the Reon.
I think a very straight forward comparison can be made for the 875 to HDA1 and PS3.
1) Feed the same SD DVD to HD A1 and set A1 output at 1080i(in this case A1 do upscaling) and compare to A1 output at 480i(in this case 875 do upscaling, I dont know whether A1 can output 480i or not though. If it cant, then please set to 480p to compare.)
2) Feed the same SD DVD to PS3 and set PS3 output at 1080p(in this case ps3 do upscaling). Then compare to PS3 output at 480i(in this case Reon do the upscaling).
Let us know in 1), you prefer A1 do upscaling or 875. In 2) you prefer PS3 do upscaling or 875.