Arguably one of the most beautiful television theme songs, ever, composed by Ronnie Hazlehurst. It bequeaths the bewitchery and beauty of the countryside and simpler times. This is a wonderful orchestral treatment of the music, not the original soundtrack featuring the harmonica (which may not exist in complete form). If you don't want to watch the slideshow, close your eyes and listen, thinking of a beautiful countryside. At the end of this video, when the credits roll, you will hear an original closing soundtrack of the series. The series aired for 37 years, from 04 January 1973 (Pilot), 12 November 1973 (Series) to 29 August 2010, making it the WORLD's longest-running television sitcom.