It’s become almost common knowledge that pixel artists used composite video artifacts to achieve certain effects. The most commonly cited examples would be transparency and dithering.
However, didn’t most TVs by the Genesis/SNES era have decent analog comb filters? I recently experienced a CRT from the mid-90s and composite video was damn near identical to S-video. There was barely any difference in sharpness; it was mostly just a color difference. No digital comb filter on this TV. Just how crappy of a TV do you need before composite video artifacts are actually visible?