I have a 42 " LCD HDTV (LG Brand),does anyone have any info what the optimal settings are for this set ?

Question

such as contrast,color, back light.The TV is located in a room with low to moderate light.

Answer 1

Under the User 1 Setting:

Contrast 60

Brightness 43

Color 40

Sharpness 0

Tint 0

Color Temp User

Under the User Setting:

Red +4

Green 0

Blue +2

XD Manual

Under the Manual Setting:

XD Contrast Off

XD Color Off

XD Noise On

Advanced:

Black Level Low

Answer 2

If the signal is strong,

Contrast - 100%

Brightness - the level at which you can see all the details in the picture - too much of brightness will increase the white level and in low brightness level you can't have a clear view of an object.

Color - a very little more than the level at which the color is real (eg. a black hair should be black, a greenish lawn should be natural green- there will be too much of green if you increase  the color level)

Sharpness - 100% if you like it, otherwise the level at which the picture is very pleasing.

See a picture with these levels. You can definitely see the difference comparing with other predefined color setting like vivid, natural, etc.