PBS - "Check It Out" collection

I really liked these segments when I was young...figured there should be a collection for these on YouTube. LIST: -A (credit goes to Rewind Eats the Tape) -D (credit goes to Abdubaction94) -G (credit goes to Rewind Eats the Tape) -H -K -L -N -P (credit goes to Abdubaction94) -Y -Z (credit goes to Abdubaction94/that90sguy)