I recently purchased a Samsung LN46D630 version SQ01 TV with a build date of July 2011, here is a quick review.
The build quality is pretty good, given that they use a metal back panel instead of plastic, this helps keep this LCD TV surprisingly thin, and it feels solid.
I'm using the stand provided with the TV. The supplied stand was much easier to install then a few of the other TV's i have used, and it has decent side to side tilting range. Overall the look of this TV is also nice and simple.
I have the 630 version which has a darker metal touch panel strip on the bottom front panel then the 610 version which has a more blueish strip. Personally i like the darker 630 metal strip as it does not stand out as much on the black bezel.
So far I am happy with the TV image quality after having tried several other brands of LCD TV's that I have bought and returned over the last month (in this price range).
The blacks are nice and dark, and the viewing angles are fantastic. Also I have this in a room with a lot of light (6 very large windows), and I can still watch this TV with all the sunlight that fills this room in the day. I don't have any issues with glare on the matte screen.
I ran some test content and this LCD panel is pixel perfect, and passed all my tests.
I have a Xbox360, PS3, PBO media player, and Laptop, connected on all 4 HDMI ports. I also have HD(1080i) external outdoor antenna & SD(480i) cable on the coaxial connection. Sound system on audio out, and OTA Satellite on composite. Each system/port i have configured a little differently in picture and feature settings. Its nice that this TV remembers the settings for each configuration. It is also nice that i can quickly change from Antenna to Cable in the menu without requiring a full scan each time ( an issue i encountered with some other TV's i have tried recently).
HD antenna looks fantastic, SD cable looks poor, but similar to all other TV's i have tried. At least the samsung properly sizes the SD signal and does an adequate job with the poor quality source. One thing that is missing is a signal strength meter on the HD antenna source. Something that all the other TV's i have used recently have had, even really cheap TV's. So i don't know why Samsung does not have this feature.
I use Game mode for the xbox and PS3, since I primarily only play games with the consoles, and use media player for videos. I tweaked the default settings to improve picture quality while in game mode, I also disabled all processing features like dynamic contrast, and anything else I could turn off. I had no issues playing a dark game, I did not notice any lag, sound issues, etc with game mode on and with everything disabled on the tv.
For my media player I set the picture settings to either have the automotion off or I set a custom setting with very low values on each of blur and judder.
I also disabled any Mpeg or noise filtering. 720p and 1080p videos look great after tweaking. Generally I prefer the movie mode picture setting with a few minor tweaks put in.
A laptop was tested with HDMI, and I had to configure the screen size within the nvidia menus to get it to fit properly as the samsung TV did not size 1920x1080 correctly on the first try. This may be due to the nvidia driver using an older setup for a different TV that I have recently returned. Sound and video worked fine from PC through HDMI. I have not tried VGA connection yet but plan on doing so soon, the only problem is that the older laptop i have with a VGA connection does not like to output 1920x1080 through VGA on any TV I have ever tried. ( even with manual tweaks in nvidia driver )
I also have this TV connected via its Ethernet port into my home wired network. The TV only connects at 100 and not gigabit but thats ok as gigabit is not required. The built in media player is able to find my DLNA Twonky media server, that runs off my NAS with no issues. It plays all the .avi (divx/xvid) files i have, and only a few of the .mkv files i have.
The only real problem i have with this TV so far is that its built in media player is quite poor and does not play all my .mkv's. It does not make a whole lot of sense why, since my PBO media player and my WD media player ( on another TV) plays all my .mkv files fine. I was able to get some 720p and 1080p .mkv's to work on the samsung, but many of my other 720p .mkv videos do not play at all.
The samsung TV sees them but once you try to play them it says something along the lines of unsupported format. It would be nice if they came out with a firmware patch that would fix .mkv support and make it more universal like my other media players.
I tried using the built in firmware update feature and it said i already have latest firmware. I also checked online on a PC on the samsung website and the firmware listed is actually even older then the one already on my TV.
The remote on this TV is ok, its nice that it does light up to see at night.
It could use some improvements, one thing that is missing is a quick way to get to the motion settings, or a quick way to toggle between Picture in picture screens, or PIP audio when using PIP. Also it would be nice if pressing the channel buttons would automatically switch you to TV mode instead of having to cycle through the source menu ( i guess thats something i sort of got used to on my Sony TV's)
I have checked the heat that this TV gives off using a hand-held laser temperature probe, and its in line with all the other TV's i have tried in the last month. Depending on where i test either directly on the screen or on the back of the TV, the temp can range from ~30 to 40 degree C ( room temp 25degC) . The metal backing on this TV should be an advantage to help keep its LCD screen cool in comparison to some other TV's with plastic backing, and based on some of my previous TV tests, the samsung is a few deg cooler on the screen.
I also plan on testing power consumption soon with a power meter.
Overall the TV is ok, i have only had it for less then a week, and I have yet to fully test all its features and really play with it but so far it appears to be a keeper.