Just got my 47LS4500 on Saturday. Thought I'd throw in my 2 cents on setting it up, etc.
Mine is being fed HDMI from a HTPC running an AMD Radeon 5670 and a Ceton InfiniTV 4 tuner card, with an M-CARD from Comcast.
The initial settings on the TV were awful, but isn't that generally true? The Color Temp was cranked to the Max Cool Color Temp (C50), so that went to '0' immediately. Next was turning off or adjusting a few things under Advanced Control. Dynamic Contrast and Dynamic Color turned OFF. Noise Reduction to LOW, Gamma to MEDIUM (HIGH tends to crush the blacks; LOW is a viable option, depending on a few other things), Black Level to LOW or the pic is seriously washed out, Color Gamut to WIDE, and Edge Enhancer to OFF (ON was just too much; e.g., my PC's wallpaper developed a pixel or two-wide stripe on the vertical edges; YMMV with actual video).
Turned OFF Energy Saving.
Picture Mode to STANDARD, then tweaked the basics (i.e., non-Advanced Control options).
I won't post Backlight, Contrast, Brightness, Color, etc., as those settings are pretty particular to one's environment.
A couple of geeky things that may be of interest to some:
1. I was running my Radeon 5760 at YCbCr 4:4:4 Color Pixel Format, and that looked OK on my old 42" LG LCD. With the 47LS4500, the pic seemed really washed out. No amount of adjusting Color, Contrast, etc., really helped. I decided to try RGB 4:4:4 PC Standard (Full RGB). Disco! Now there's real vibrance, deep blacks, and the TV is a keeper. If my memory isn't too far gone, I swear trying Full RGB on the LG 42" LCD produced an image that was far too dark, blacks crushed, etc. Irrelevant now, of course. I will add that the difference between feeding that TV Component vs. HDMI from my Comcast 8300HD DVR is remarkable. The Component feed requires more Backlight and Brightness, but the colors are really rich.
2. Back to the 47LS4500... I just discovered that changing an Input's "Label" under Options affects how the TV deals with said Input. For example, when I change my HDMI 1 from blank to PC, the picture settings immediately change, and the options are severely limited. Under Aspect Ratio, only 16:9 and 4:3 are available (no Just Scan), and under Advanced Control, only Gamma and Black Level are available. I switched the Input Label back to blank, and it automatically went back to my previous tweaked Standard settings, so that's a nice feature, though nothing new.
As noted in another thread
there is no way to adjust or disable TruMotion. It seems to be Always-On. And as I noted there, the owner cannot access the "Product/Service Info" screen or any "Support" info in general. So if you want to update the software, you'll just have to try the latest to see if you need it or not. Might be worth noting the current version somewhere (note on a PC, a sticky on the back of the TV, wherever).
Anyway, those are my initial thoughts and impressions. Watching the Skins eek out the win over the Giants Monday night sure looked good, esp. after adjusting the color output from the HTPC
HTH someone down the line.