What is the tv show called about a boy who is an alien but looks human i think it was made in the 90s it may be an educational series i think the boys name is zoltan or something similar can you help?

The name of the television show where a boy is an alien, but looks human is 'Bop'. This was supposed to be a kids' educational program, but it was cancelled due to the story line. A boy was actually being bullied in the story.