The new-generation of LCD TVs have a viewing angle of 178, the same as plasma TVs. Why does a plasma TV still look better when viewed at an angle?
Plasma TVs give you the same high quality image no matter where you are in the room, because each dot on a plasma TV produces its own light. LCD TVs use a backlight system and the Liquid Crystal Molecules act like tiny shutters to create the dots. Depending on your viewing angle, there may be some light leakage, even on newer LCD TVs. Plasma TVs are recommended for screen sizes of 37″ and larger, for living room and home theatre applications, where more than one person will be watching the screen.