This is the first time I ever found the Japanese name of this show. Kodomo Ningyougekijou (こどもにんぎょう劇場) or Children’s Puppet Theater, known in Peru (and maybe Latin America) as Me lo Contaron en Japon.
Though the DVDs are available on Amazon Japan — at a whopping price of nearly $50USD (over 4500 Yen) per volumen at 3 episodes a bundle , which results into over $600USD for 36 episodes. WHY, Japan? According to its Wikipedia page, the show possibly has over 50 episodes, running from 1990 to 2011.