Ranma ½
らんま1/2 (original)
After falling into a cursed Chinese spring, Ranma Saotome changes gender when hit with cold water.
Starring Kappei Yamaguchi, Megumi Hayashibara, Noriko Hidaka, Rei Sakuma, Koichi Yamadera, Kenichi Ogata, Minami Takayama, Kikuko Inoue, Ryusuke Ohbayashi, Hiromi Tsuru
It's a action & adventure and animation show, and has a rating of 8.1 out of 10 from Imdb which is very high for this kind of show.
Watch it here
Not found streaming from United Kingdom.