In my opinion, a must watch for any otaku out there.

Otaku no Video is a 1991 anime OVA spoofing the life and culture of otaku, individuals with obsessive interests in media, particularly anime and manga, as well as the history of Gainax, its creators. It is noted for its mix of conventional documentary film styles (with actual film, no less), with a more traditional anime storytelling fashion.

The story begins in Otaku no Video 1982, where the main character is an everyman character, Ken Kubo, living with his girlfriend Yoshiko and as a member of his college's tennis team, until introduced by his former friend Tanaka to a club of enthusiasts: a female illustrator, an information geek, a martial artist, and a weapons collector. Kubo soon joins them; and when Yoshiko abandons him, makes the wish to become the supreme enthusiast, under the name of Otaking.