Yes Geoff, though not quite accurate.. the quality of information changes over the years. The short TV series was made in 62, though there was a repeat showing in '63. Later in '69 the radio series came out.   all that has been pretty well covered in screes of previous discussion. My father's version doesn't really straight fit the tune, which has led to some horrible crashes when people try and sing his words to the more familiar one. There are fine lyrics which have been written by a number of people, and each have different qualities, same with the instrumental which is obviously beautiful on its own, and covered ad infinitum.