``Arthur and the Big Riddle'' challenges the notion that winning is everything; Arthur bends to a ``Double Dare.''.
Cellist Yo-Yo Ma duels saxophonist Joshua Redman in ``My Music Rules''; Arthur loves a children's show in ``That's a Baby Show!''.
The parents attend an open house in ``Kids Are From Earth, Parents Are From Pluto''; Buster shoplifts in ``Nerves of Steal.''.