Adult Swim is an American cable network that shares channel space with Cartoon Network, both of which are owned by the Turner Broadcasting System division of Time Warner, every night from 8:00 p.m. until 6:00 a.m. ET/PT in the United States. Man-Tsun, illustrator from Hong Kong created a series of creative posters used for the promotion of the channel. I never heard of them, but I am not from the US, so probably not their target, but after I saw these posters, first thing I did was googling to find out more about them. So job wel done!