Screen curvature, black level, upscaling blur, lack of interlace flicker, dot mask.
Scanlines on it's own doesn't really cut it, it hides the blockiness of the image but it's far from an lcd.
The upscaler of alot of TV's adds lag of a few frames, which is why rythym games on modern platforms (guitar hero etc) have calibration screens so that you can reverse the effect. Even without that alot of LCD monitors will take a few frames for pixels to go from full white to full black (regardless of what the ms actually claims).
Thats why a native Amiga with LCD is just nothing more than en Emulator
