I watched "The Howdy Doody Show" sometimes while growing up in the late 1950s. I liked the show and the marionettes, but was not a dedicated fan, meaning that I'd watch it whenever I could, but not every day.
During the nostalgia craze in the early 1970s, 'Buffalo' Bob Smith and 'Howdy Doody' were making the rounds on tv shows and college campuses. One of the tv shows on which they appeared was "The Glen Campbell Goodtime Hour".
I used my 35mm camera to snap some pictures off the tv screen, and while the quality was only fair, I sent copies to Mr. Smith at his Florida home. Of course I requested an autographed photo too. He replied with this letter and this vintage photo.