SciTech Now Season 2 Episode 18 Episode 218 ( Air Date 2016-02-03 ) Genre Documentary category. Overview "In this episode of SciTech Now, we take a look into the most common genetic disorder worldwide: color blindness; Professor Stuart Licht offers a promising, economical solution to the fight against climate change; and ocularists create prosthetic eyes that are both realistic and comfortable, as well as life changing.".