My kids and I are huge Blue's Clues fans, and although my older son is a little old for it, we still watch it often. A while back, we saw an episode on dreams, in which Steve teaches you that you can change your dreams into what you want them to be! It was really cute. Here's a synopsis on the episode:
http://www.tv.com/blues-clues/what-was-blu...31/summary.html
hopefully they'll air it again soon, I'll keep my eye on the listings for anyone interested. I know it's a kid's show, but it's interesting anyway!