Star+trek+deep+space+9+s01+ai+upscale+4k+2020+better 'link' (8K)

The “better” in your search usually means:

The mention of a 2020 release could refer to when the upscaled version was made available. Given that 2020 was a year when AI upscaling technologies were becoming more mainstream and widely adopted, it's plausible that a project to upscale Star Trek: Deep Space 9 to 4K could have been completed or announced around that time. star+trek+deep+space+9+s01+ai+upscale+4k+2020+better