Ranma ½: Tendou-ke no Oyobidenai Yatsura!
Genres: Comedy, Slice of Life
Type: Special, Episodes: 1
Aired: Aug 30, 1992
Studio: Kitty Film Mitaka Studio
Source: Manga
Rating: PG-13 - Teens 13 or older
Synopsis:
This features a Nabiki narrated review of the series where she discusses various characters that the Tendo family has had to tolerate spliced with new animation of Nabiki hanging around the house, taking a bath, and wondering about the true identity of P-chan. It was available through the Kitty Animation Circle. 

(Source: furinkan.com/ranma/anime/specials.html)