並非成人卡通，而是製作對象並非針對小孩，播出時段也是很晚的卡通，一般來說小孩子都... Swim, usually rendered [adult swim] on bumps, is the name for the adult-oriented television programming block on Cartoon Network. It premiered on September 2, 2001. On March 28, 2005, Nielsen Media Research began treating the block as a separate channel from Cartoon Network for ratings purposes. While unusual, this is not new. Nickelodeon's Nick Jr. and Nick at Nite blocks are also considered as separate channels by Nielsen.Originally a Sunday-only block (that also re-ran on Thursdays), Adult Swim now airs every day of the week (except Friday) at 11 PM Eastern/Pacific (10 PM on Sundays) with an encore airing at 2 AM and then ending with an hour of older shows. Adult Swim programming may also be viewed on Friday nights via Friday Night Fix on adultswim.com. The block, programmed by Williams Street Studios, the same group that created Toonami and Miguzi, plays American animated series and shorts geared towards adults, and a wide variety of Japanese anime series and OVAs. Promotions for Adult Swim have been targeted towards the college age group (18-24), which constitutes the majority of their viewers. According to a September 1, 2004 article in Promo magazine, this form of advertising is used for many of their shows. Representatives are sent to 30 universities across the U.S. to promote the Adult Swim lineup, including handing out posters for students' dorm rooms.The block is named after the hours designated at public swimming pools for adults-only swimming.Originally, all of the bumps shown in between shows featured footage of senior citizens swimming in public pools with a lifeguard shouting through a megaphone. The current bumps feature black "cards" with white text on them, which discuss everything from news about the programming, to personal staff opinions on unrelated subjects. On Thursdays, Adult Swim airs cards which they pull from the Adult Swim message board and respond with their characteristic banter.