Gilgamesh Night was broadcast by TV Tokyo early Sunday mornings from around 1:15 a.m. to 2:10 a.m. from October 1991 to March 1998. Despite the late night time slot, at its peak Gilgamesh achieved ratings exceeding 9%, higher than most of TV Tokyo's prime time shows of the time. The show is perhaps best known for launching the TV careers of former adult video actresses Ai Iijima and Reiko Hayama as well as gravure idols Fumie Hosokawa, Kei Mizutani and Tamao Satou.
The show had a wide range of segments usually on a sexy theme with a lot of humour. In 'Yashoku Banzai,' comedian Ijiri Okada and AV actress Hitomi Yuuki would cook with Yuuki dressed only in an apron. Sometimes they would have treasure hunts where a whole slew of AV actresses would all be in aprons running around the studio. Jeff Furukawa ran a corner where he would demonstrate shiatsu techniques on one of the actresses. Sometimes the actresses would visit hot springs, aesthetic salons or cabarets. There were at least two in-house idol groups, the Sexy Mates and Girigiri Girls, who would sing and dance. Fashion shows, photo-shoots, strip games or musical chairs were other common segments. There were 'bath room cinema' reviews of both Hollywood blockbusters and Original Videos that the actresses themselves appeared in.
It should perhaps be noted that many of the female announcers (eg. Senna Matsuda, Akira Kiuchi) and idol groups never appeared nude, and there were limits on the participation of AV actresses even at the show's height. Gilgamesh was a lightning rod for controversy though, and it was this that eventually led to its cancellation and the swing away from adult content on network TV.
Gilgamesh was replaced by a program called Artemish Night, but it wasn't as popular.
In 2012-3, BS Japan revived the show as Gilgamesh Light, also starring Ijiri Okada.