youtube ^^
you can find any episode of yu-gi-oh on www.4kidstv.com
I watch them on Veoh.com
Go on to youtue and type in Yu-Gi-OH GX US and you can watch it in English from 4kidstv
Go on Hulu it's free to watch any yu gi oh episodes You can't download it but you can have a C.D. I have complete season of Yu-Gi-Oh GX Season 1 2 3 4 but 5 is an unfinished video I have only episode 1 of it >_
It depends; I do not personally know of sites for dubbed/English episodes; but for subbed Japanese episodes, Dailymotion.com has many subbed episodes, in good quality.
There are 155 English versions. In total there are 180 episodes. The rest are in Japanese, but you can watch them with the subbed version.
The producers of Yu-Gi-Oh! GX decided to stop making Yu-Gi-Oh! GX when they got to episode 156 (the last episode of season one), even when Japan finished their fourth season. They decided to go straight to Yu-Gi-Oh! 5D's. But, you can watch Yu-Gi-Oh! GX episode 156-180 with subtitles on youtube or google videos.
YouTube.
At CW4kids.com
You can go to a place called pisoga.com. They can definently assist you on catching up in Japanese and englih dubbed.
the best place to watch yu gi oh episodes is probarlyyoutube i watch them all the time all you type isyu gi oh episode EG 67 its one of the best for mei seriously recomend iton hulu