Ok so there was this show I used to watch I think it was on cartoon network but I am not completely sure. It could have been on a local channel like the wb or something. But the show was kind of like an adventure type show and it was done in 3D (computer animated). It was like a virtual world and the characters were more like robots. There were ships/boats that flew. The main character was blue I think. I really can't remember much more so please help if you have any ideas

Could it have been Phantom 2040?

That description sounds like something I used to watch with my daughter in the '80s. Only thing is I seem to remember it being on one of the networks, and I want to say ABC. But I'm not real sure about that. The boy robot was blue, and I think that he lived with his older sister, I don't think that it was with his parents. But I could be wrong there.

I believe it was a show called Reboot. Great show by the way.

YouTube - ReBoot - Season 4 Alternate Opening (Story Arc 2)

There were several seasons with different opening scenes. Here's one of the later seasons.