I have a Samsung 32 inch led TV that I play Tsw on, and I am always tinkering with picture settings, trying to get the most clear and enjoyable picture, and it drives me mad. What settings do other people use, I know this is all down to personal taste, but it might be interesting to find out.
...being a home theater nut for many years now, I’d say one of the most important adjustments you can make on any tv is setting the correct black level. By that, I mean adjusting the brightness level on the tv just right so that true black color is correctly shown on the display (without the brightness being set so high such that black colors are shown as slightly gray, or the brightness being set too low such that slightly gray colors are shown as black). It’s an important adjustment that unfortunately is either never set by the user, or is set wrong... you can read much more about all of this on the web of course. Good luck!