You probably didn't know but there's an Anime series of Stitch that takes place after Leroy & Stitch (yeah, right!). Unlike the Lilo & Stitch tv series and the movies, this one goes for a darker and mature theme. The series is edited in the US, but was left unfinished with only 5 episodes aired.
Also if you seen the show you'll often find Hidden Mickeys.
It's been 13 years since the original Lilo & Stich movie was released.
[UPDATED IN 6/21/2017]
There's another TV spin-off of Stitch called "Stitch & Ai". It is a prequel to the Japanese anime and takes place in China.
Lilo & Stitch series ~ Disney
Stitch! ~ Disney Japan; Madhouse
Pickles ~ Dark709; BZPower; NewGrounds (???)