Regarding the "J for Jacket, Jenny and Jeff" cartoon segment, were the sound effects used as the jacket was illustrating verbs starting with J the same ones from the Hanna-Barbera sound effects library? When "jiggle" was being demonstrated, the sound effects then sounded like wind chimes. I know there were many older cartoon segments that utilized Hanna-Barbera sound effects, such as "E for Elephant and Elk", "Tommy Trueheart's 11 lions", "Number Elimination" (the one with a rare cartoon cameo by Cookie Monster), "Boy assembling a green and red monster" and "The R Wizard". I did read that Hanna-Barbera sound effects were used as recently as the 2000s - particularly in the 2002 version of the opening theme, especially when blocks that showed "D, B, C" were being rotated.