Just got mine in yesterday. I don't see any issues with it being dim at all. In fact I turned the contrast and brightness down to 50, sharpness to 0, and DNIe / DNR to off. Everything else is default at the moment. PQ is excellent as far as I can tell but I'm no trained eye. I've love some suggestions on any settings I should try.
I hooked up the UHF antenna last night (first time I've ever done this). I was amazed to see I got every channel in my area w/o an outdoor model antenna. I then compared the Colts/Rams football game between TWC HD channel and my local OTA HD station. The difference is AMAZING... OTA was far better. DVD's looked pretty good too. I was a little under whelmed with NTSC signals but it's better than anything else I've seen on digital sets. I'm still spoiled on my old tried and true Pioneer Elite NTSC set for NTSC quality.
Here are some crappy pics; my only camera right now is a sub function of my camcorder so any noise you see is the camera... it's terrible sorry.
Here's the link to start with...http://www.cltonline.com/images/HL-S5679W/DSC00015.JPG
change the number on the end to see all the pics I'm too lazy to name them...
15-17 is Baseball on ESPN HD
18 is Sci-Fi in SD
19-20 is Tennis on a blue court on INHD
21 is another Baseball on ESPN HD still shot
22 is another Tennis on a blue court on INHD
23-26 is some SD Comedy Central shots
27-34 various HD channels (the pics really do not do this any justice what-so-ever sorry)
35-47 is various dvd shots, really bad shots though lol
Sorry my pics are basically useless but I fogured I'd share them anyways.