← Back to context

Comment by RiverCrochet

4 months ago

I grew up playing Atari, NES, SNES, and PS1 games on old TVs most of the time, sometimes not the best quality. I also remember that often in 80's arcades, it was guaranteed for at least one or two machines to have CRT issues; colors not aligned, skew at the top/bottom, burn-in (common), screen too bright, etc. All part of the experience and quite nostalgic for me.

The NES had a particular quirk with its NTSC output that I always thought was very characteristic of NES. I found this article a few years ago, and was fascinated that work was done to really figure it out - https://www.nesdev.org/wiki/NTSC_video - and it's awesome at at least some emulators (FCEUX) seem to use this info to generate an experience quite similar to what I remember the NES being when I grew up. But I don't think any NES game graphics really depended on this for any visual output. All NES games had jagged vertical lines, for example.

> The video timing in the NES is non-standard - it both generates 341 pixels, making 227 1/3 subcarrier cycles per scanline, and always generates 262 scanlines. This causes the TV to draw the fields on top of each other, resulting in a non-standard low-definition "progressive" or "double struck" video mode sometimes called 240p

Ahh: I always wondered why I never saw interlacing artifacts on the NES! (I'm going to assume the same thing for the SNES too.)