The anime adaptation kicked off in 1992 and is still going on in Japan with 895 episodes produced so far.
Funimation has now brought the fifty-two episodes that they produced in dubbed/edited form to the Tubi TV service where it works its own script based on the original to some degree.
The show is based on the manga from Yoshito Usui that began in 1990 and completed in 2010 with fifty published volumes.