This is another one of my four year old grandson's favorites, Caillou! He first started watching this show on PBS and then we found some DVD's at the library that we borrow from time to time. These can be bought at most stores that sell DVD's and online for around $10 to $15.
These shows are in cartoon format about a little boy named Caillou that loves to play "make believe". I really like the ideas that it gives children for pretend play. I think in this day and age children don't play make believe as much as we did in the past. Make believe can be an important learning experience for kids and I'm glad there is a show like Caillou that motivates children to use their imagination.