Cosmos: A Spacetime Odyssey was produced in 2013–2014, when 4K was still nascent for television. While the show used stunning CGI and high-resolution space imagery, the final master was finished in . Upscaling it for a 4K release would cost money, and the rights holders (Fox and National Geographic) haven’t deemed it worthwhile—especially since the sequel series, Cosmos: Possible Worlds (2020), was produced in 4K and is available in that format on Hulu and Disney+.
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