I'm kind of in a Sokko mood now, what with the good news from yesterday, so here's a neat little video comparison between the opening credits of the US and Japanese version of the show. I don't think much was edited out of the actual show, but the credits were changed, naturally.
and some of the English episodes had bumpers for the next episode. I'm not sure if they all are still surviving, but I know I've seen several. logic dictates that the all the episodes would have them then, right?