When I enter the service menu of my CRT TV, there's an option where I can move the visible image around and I can also stretch and compress it.
This way, I can put all the 240 pixels of the NES output into the visible area, not just the 224 pixels that are typical for NTSC.
Now, imagine if I set the screen in a way so that it shows all the 240 pixels, at least in the middle of the screen (i.e. not the way NTSC TVs usually show the image since they always cut away about 16 lines):
<-- Both bottom blocks in SMB are completely visible.
If this is the screen sconfiguration of my NTSC TV, what would happen if I connected a Super Nintendo now?
The Super Nintendo only generates a picture height of 224 pixels, not 240. So, what would the picture look like?
Would it stretch the picture to the visible area?
Or would it insert black bars at the top and the bottom to compensate for the fact that the NES generates 240 lines and the SNES 224?
Please remember: I use both, the NES and the SNES, with the same screen configuration. And I configured the screen so that it shows just the full amount of the NES image with its 240 pixels without adding black bars and without cutting anything away (except for the stuff that gets cut away by the TV's round shape, but in the center of the top and the bottom, you see line number 1 and line number 240).
For reference, the pixel-perfect images that I used:
This way, I can put all the 240 pixels of the NES output into the visible area, not just the 224 pixels that are typical for NTSC.
Now, imagine if I set the screen in a way so that it shows all the 240 pixels, at least in the middle of the screen (i.e. not the way NTSC TVs usually show the image since they always cut away about 16 lines):
<-- Both bottom blocks in SMB are completely visible.
If this is the screen sconfiguration of my NTSC TV, what would happen if I connected a Super Nintendo now?
The Super Nintendo only generates a picture height of 224 pixels, not 240. So, what would the picture look like?
Would it stretch the picture to the visible area?
Or would it insert black bars at the top and the bottom to compensate for the fact that the NES generates 240 lines and the SNES 224?
Please remember: I use both, the NES and the SNES, with the same screen configuration. And I configured the screen so that it shows just the full amount of the NES image with its 240 pixels without adding black bars and without cutting anything away (except for the stuff that gets cut away by the TV's round shape, but in the center of the top and the bottom, you see line number 1 and line number 240).
For reference, the pixel-perfect images that I used: