TV-Y
S1 • E22 Dec 16, 2013 30mFrom PBS KIDS - The Big Dog Problem: When Peg and Cat need to mail some important letters for Peg's Mom, they find their path to the mailbox blocked by a really big dog. The Three Friends Problem: When Peg and Cat are playing with their new friend the Big Dog, Cat suddenly becomes strangely quiet. Using a graph, Peg attempts to figure out what's wrong with Cat.
