I'll confirm that SD channels via S-Video from my 811 are so dark that they are really not watchable. However, all channels via my DVI connection from my 811 have a darker caste than they did when I watched SD on the same Sammy HLN507W from an old 2700. I've had to make picture adjustments to compensate. The "Standard" setting on the Sammy is often too dark for some material, so I use "Dynamic" (usually just reserved for bright sun conditions in the house. I used to use the "Movie" setting for watching Starz and CM, but with the 811, they are just too dark now.