While on the PBS topic...

I love the new (and old) Electric Company. They do a lot of phonics and grammar - and they're fun. My ds cracked me up last year when he pronounced the -ED on every word (like wretched)...but he globalized it to all past tense words. "I walked-ed to the store" (for example). When I corrected him on this...he cited me the Electric Company and the rap he learned-ed.