I thought I would give my impression of the LCD, Plasma debate.
I own a 46" Samsung LCD, for the past few days I have had a 42" samsung plasma sitting right next to it.
During the day the LCD is far better but at night the plasma is far superior, I have a room with lots of uncontrolled light.
During the day on the plasma's blacks get very gray and the screen gets washed out not to mention the reflections, making it very hard to watch. The LCD during the day looks great the brightness of the TV really helps plus the matt screen, black for the most part is just as black as it is at night.
During the night with very little lighting the plasma looks awesome lots of shadow detail (as much or a little more then the LCD during the day) unbelievable depth, black is BLACK, I get a Y 0IRE reading of 0
. The LCD looks a little better at night then during the day but side by side it looks washed out compared to the plasma, black is black but not as good as the plasma, Y 0IRE reading .08 to .1. Plus the LCD "bleeds light" if you have white and black lines on the screen, on the LCD the black lines are a bright black on the plasma at night they are black.
Other then the black/shadow detail, the LCD has very bright/vibrant colors, the plasma has very dark/rich colors. The plasma has a sightly softer PQ but a "smother" PQ. I noticed motion blur before but side by side it is very noticeable on the LCD.
Technically the plasma is very close to the standard; color gamut, gamma and such are good almost out of the box, with just some black crush that could be easily adjusted out. The LCD's color is over saturated, gamma is generally higher on the top end and lower on the bottom, lowend grayscale is bad. But for the most part this would be IMO a personal preference regardless of what the calibration police might tell you.
All that said I would love to have a plasma for night time viewing and a LCD for daytime viewing but as I can only have one it will be LCD for me, because of my room conditions and the LCD has a more consistend PQ (very good) The plasma goes from OK to awesome. The Plasma will be going to mom for mother's day as she has a darker viewing room.
The TV's and stuff:
Vision HDP-only used on the LCD, yes giving it an advantage but I did remove it some of the time.
Some day maybe some one will make a TV that will look awesome in all viewing conditions but I am not holding my breath LOL