is complicated because the series was originally released in High Definition (1080p), not native 4K . While a 4K "Premium" tier is listed on

: Available for digital purchase and download by episode or full season.

: Some hobbyists have used AI to upscale episodes of the original 1980 series, Cosmos: A Personal Voyage Public Archives : Sites like Archive.org

Here is the current state of play for viewing Neil deGrasse Tyson's masterpiece in the best possible quality. 1. The Reality of the Resolution