Off to See the Wizard (TV series 1967-1968)

Family-oriented TV series, produced by MGM, in which animated versions of the "Wizard of Oz" characters were used as wrap-arounds to introduce various family-oriented films from the MGM library ("Lili," "The Glass Slipper," among others), usually shown in two parts, nature documentaries, and original programming, most notably the Emmy-nominated "Whatever Happened to Mother Goose?," featuring an all-star cast as various Mother Goose characters. - IMDb