I watch Pocoyo for many reasons; the stories are good ones for my kids, I like the sound design, the visual design is stunning.
Pocoyo's Art Director is designer Pedro Bascon, I was floored by the colors and the graphic layout of the skyscraper facades. Bascon's illustration and design work is amazing. He's a super talented designer and his work is not only on his blog about his design for animation, his larger porfolio is on Behance and there is a personal site that is more geared towards illustrating children's books.
It's a simple thing and maybe something most don't really care about, but I have had to design cityscapes and have sketched out a few on my own and Bascon's is incredibly original.
I love it.