The first half of Episode 3 of Zoku Sayonara Zetsubou Sensei is comprised mainly of slow fanservicey panning shots of Fujiyoshi--up until then a relatively minor character--as she watches Zoku Sayonara Zetsubou Sensei on a tiny television with the sound muted. Plot and character development progress as usual in the form of a Zetsubou-themed radio drama she's listening to in the background. She is drawing yaoi. The camera lingers over her thighs, her breasts, and her shoulders before suddenly cutting to shots of her desk, on which she is drawing scenes of young men having explicit gay sex. Every now and then she'll look at her television screen, and the camera will cut to it, in which the same panty shot is being repeated over and over. The only character dialogue is Fujiyoshi saying things like, "Etto...should I draw this pairing? It's a little obscure..." This goes on for about fifteen minutes before the episode actually begins, at which point the audience has already missed everything.
In another episode, the credits scroll across the bottom of the screen in the middle of the episode for no reason.
In yet another, while the characters are discussing the tendency of people to be distracted by small details, Earth is suddenly invaded by aliens. The rest of the episode is a gratuitous giant robot fight scene.
In yet another, Fujiyoshi is drawing hentai 4-koma, and Chiri shouts, "Harumi, what are you doing? This is disgusting! I won't stand for this! A story must have a beginning, a middle, and an end!" The rest of the episode--the ten minutes or so left, anyway--has a stirring rising action, a melodramatic climax, and a spectacular and totally nonsensical denouement, none of which have anything to do with the plot.
How could I not love this?
(In case anyone's wondering, I'm catching up on anime-watching in preparation for Otakon this Friday.)