I've changed Gamma from 4 to 5 and also to 2, but I preferred the default of 4 since it seemed to be more natural. I tuned the settings for night viewing since this is when I mostly watch.
I have an HLN507, Release Mar 15 2003, T-B3K5001-208, and a Pioneer DV434 progressive scan player set at Interlaced mode.
Here are the settings that works for me which I derived from AVIA tuning...
Color Tone: Normal
DNIe: Off (On for SDTV)
DNR: Off (On for SDTV)
Contrast: 80 (75 for SDTV)
Brightness: 83 (60 for SDTV)
Color: 39 (27 for SDTV)
SDTV is via lousy cable TV signal.
DVD is connected via component out.
DVD setup is set to "Professional" setting, rather than TV(CRT) or PDP.
Also, I've never seen the DLP rainbow whatever I do (scanning L to R, moving head, etc.).
I see the minor light reflection at the lower right on dark scenes when there is a bright spot on the upper left.
Clayfaces depend from DVD to DVD but it doesn't show on SDTV signals. With the TVs default settings, the clayfaces seem more apparent.
With my Xbox, it feels that I am using a big computer monitor. Very sharp, detailed, no flicker. I use an Advanced AV Pack which uses S-Video.
I usually get headaches watching RPTVs from the showroom or when using a computer monitor with a refresh rate lower than 72Hz, but I don't with this DLP. It also helps that I have soft ambient lighting and I'm 10 feet away. Unlike some TVs, I don't see any flicker. The image is very stable, almost like looking at a computer LCD.
I love this set so far!!! My wish? To be able have it ISF calibrated for FREE.