First I will say this is one of the best looking screens I have seen, once configured correctly. It did require some tinkering:

I have read some reviews complaining about the "Made in Mexico" models not having as nice of a picture as the korean models, so I was a bit weary when I received the mexico one. I was a bit disappointed, particularly when hooked up to the PC input with the out of box settings. dull and somewhat muddle looking color. However, a quick adjustment to brightness contrast and color profiles quickly solved this. HDMI by contrast was WAY to bright and sharp on factory settings when hooked up to the PC. (I have not tested this on any bluray players, as I currently use it as a screen for my HTPC.) I had to turn the sharpness down all the way, it just does not work well with PC text and 3d gaming, and brought out too much artifacts in Xvid and mpeg4 encoded media files. Took me roughly 2 weeks of playing with all the settings before I got a truly fantastic picture on this model, which is why i give it 5 stars. Lets just say if you are comparing to in store models, you have not seen anything yet. most stores do not correctly configure the screens before displaying them.

I do not use the sound, however I can testify that it does sound tiny when i tried my PS2 on the component inputs, but most flat panel TVs do not have good sound, so I recommend a good external setup regardless to the TV brand. Get more detail about Samsung LN37A550 37-Inch 1080p LCD HDTV.