iTunes/PBSKids release:

“PBS Kids Raising Readers program helps build reading skills all year long.  This summer they’re presenting 10 weeks of special programming with offline activities from your favorite PBS KIDS programs.  Download free PBS Kids TV episodes every week through August 15″

Via iTunes, simply go to:   iTunes Store > TV Shows > PBS KIDS Raising Readers

OR click on the PBS KIDS Raising Readers ad here