First of all, Tenchi Muyo is Japanese animation, also known as anime. If you don't know that your probably lost and need help elsewhere. Tenchi Muyo is the story of a regular guy named (....prepare yourself! ) Tenchi (...WoW!). Tenchi is an ordinary guy.... until he starts to get visitors from the stars. As it turns out, Tenchi is the crown prince of a planet called Jurai. Pretty soon, Tenchi is surrounded buy girls all fighting for his attentions. The series is comical, romantic at times, and has lots of action.

Well first of all, don't use more than one question mark when asking a question. It makes you sound like a moron. And another thing, never use more than one exclamation point, or you sound like a used car salesman. Now then, Tenchi Muyo was origonally produced as an OAV (video only release) called Ryo-oki. This continued in two sets of series. Tenchi Muyo was then produced as a TV show. The producers (in all they're moronic wisdom) changed bits of the story around. Which turned out to be a good way to milk the series for more money from poor anime fans in North America, since they could re-release the series. As for Pretty Sammi, that is something different entirely. Other "Universes" seem to pop up every now and then. The purpose of Archen's Guide to Tenchi is to help sort everything out for those who are confused by it all.