Nature of bigger size LCD TVs
What are you SD contents allocation to watch? The smearing issue is particularly serious when you have a bigger size TV watching SD contents.
If you prefer LCD, go with a smaller size LCD; or if you prefer that size, then consider the 5064 or 4264 plasma. (I also have the FS ad about the free Blu-Ray player as a bundle.) Mind you, for a 50" plasma the smearing blurring may still be there, but much more tolerable than LCD's. Also, the significant difference in response time of the models LCD 8ms vs. Plasma 1ms already tells you a lot (re: playing games and watch sports broadcast you would prefer a fast response time).