Because of the success of Dragonball Z, it was decided that this hit series must continue. However, it has upset many viewers because Dragonball GT is was headed by someone besides Akira Toriyama, the header of Dragonball Z. This series got its name (GT) from the words "Grand Tour" because at the beginning, Gokou, Trunks, and Pan journey, or tour, through space in search of the Black Star Dragonballs in hope to wish Gokou back to his normal self. But, the theme later changes to make the series more interesting.
Season #1 of Dragonball GT:
See the The Baby Saga
Season #2 of Dragonball GT:
See the The Evil Shenlong Saga