A few of them. Polka Dot Shorts and Blue's Clues were big ones. I especially remember Blues Clues because I was like 5 and had to babysit two kids despite being, you know, 5. It wasn't a good time in my life. (For an incredibly depressing read, click here!) It's how I learned left from right and to this day I still need to make the little L with my hand to be sure

Oh and Art Attack I think it was called. That show was awesome