John Hindsill is right, I think. TBP was used as the theme song for the "Big John & Sparky" radio show. I have never met anyone else who remembered that show. One Saturday, Big John did a "live request" show (Not really. Such things weren't commonly done like they are now.) in which he asked the listeners to tell him which story-record to play. With all the volume my four-year-old voice could muster, I screamed, "The Little Engine That Could!" in the direction of the radio's speaker. To my amazement, it worked! He played it!