This is a complete favorite of my two oldest boys (ages three and five). It is fun, educational and a great watch. In the show you will find a lot of problem solving and a great example of where a fantastic imagination can send you... not to mention that something is learned in every episode.
We have a DVR and many recorded... if my kids could watch it back-to-back all day long, they would! And it's such a good show that I don't mind at all... I even watch it with them most of the time!
Check it out if you have little ones - and even if you don't!