So this was a Sci-Fi TV series about a kid who happens to find part of a device that looked like a bone that his dog was chewing. This device was later known to be a bomb. The boy was joined by some crazy professor to find the rest of the parts of this device so that the villain won't be able to get them first. They travelled through vast dimensions to collect the remaining parts of the device. Also, it has a crazy plot twist at the end of the series, the villain turned out to be a good guy who actually created the device and then wanted to keep it away from evil (I know its weird creating device that can destroy whole world, then try to keep it out of evil hands), and professor wanted to get the device to rule the world.
It's live action.
It came out before 2007
It targeted teenage audience
Show didn't take itself too seriously since they travelled through very silly dimensions.