If it helps, I don't watch hentai . I MIGHT watch harems and ecchi series, but that's it.
Although Yosuga no Sora, the one I'm watching right now, has quite a bit of sex. No genitalia, but an endless supply of tits. It DOES have a plot, though! And it's interesting!
i award Ano Hi Mita Hana no Namae o Bokutachi wa Mada Shiranai as the anime of the year. I award Secret Base 10 years after as the best theme song from this anime. [youtube]lxixrgQlzSo[/youtube]
Ah... okay. It's normal for a drama episode no matter what country though. Well Korean's are about 1 hr and every series some 50 episodes, they say. idk. Marathon dramas to me is like finishing a whole season in 1-2 days. I did that with JIN. Amazing stuff. <3