J loves Word World (on PBS)

There is a world, where everything is made from words:

It's a PBS show that J loves. Characters and objects are actually made from the letters that spell them. So "Pig" is drawn from the letters P-I-G. When the characters start to "build-a-word" she rocks and sings. She even knows the theme music; when the show starts she'll crawl over toward the TV or sharply turn her head in that direction. If anyone knows where I can get cheap DVDs of this show, let me know!