My kids love the Backyardigans! I also rent them first but initially I buy them to add to their collection. The people behind this show are truely imaginative. I hope they don't run out of ideas! My youngest absolutely loves the best clowns in town episode and my 4 yr old loves all of them, especially movers of arabia, he loves the songs and so do I.
My daughter absolutely loves this show! She starts to smile as soon as the theme song starts and usually doesn't stop until the credits roll at the end! I always watch with her so that we can sing and dance along with the characters. I think it is educational, is really teaching her the value of using your imagination and is increasing her vocabulary. Fabulous!