Popsugar Entertainment Tv TV Shows Ending in 2021 Get Ready to Say Goodbye to These 13 Shows Ending in 2021 7 October 2020 by Grayson Gilcrease View On One Page Photo 11 of 12 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 11 Lost in Space On Mar. 9, the show's official Twitter announced that the third and final season would be airing in 2021. Previous Next Start Slideshow TV