These screenshots were taken from a 720p LCD HDTV

 

 

Sega Master System Composite

 

 

Sega Master System S-Video

 

 

Playstation 2 Component

 

 

 

Sega Genesis Composite

 

 

Sega Genesis S-Video

 

 

Playstation 2 Component

 

 

 

PC Engine Duo Composite

 

 

PC Engine Duo S-Video

 

 

The PC Engine screenshots were taken from a wider zoom angle.

This TV cannot run the PC Engine's video signal, so the stills may be more distorted than the SMS and Genesis screenshots.

The Genesis vs PS2 screenshots appear more similar in color in real person than the screenshots reflect.

 

The Playstation 2 SMS images are rendered in a resolution of 512 x 224 and the Genesis is probably also emulated in a different resolution that the real system. This is likely the reason that the upscaling/conversion effect doesn't seem to affect the Playstation 2 images as much as the real consoles.

 
SMS
   
PS2
The graphics have smoothed edges. This is not due to a lower quality signal.
  Roll your mouse pointer over the image to the right to see what the PS2 graphics look like when heavily blurred in Photoshop.