Given the number of performances he racked up, I am frustrated that there is no video evidence of Forrest Tucker's Harold Hill on YouTube. Presumably he appeared on SOME talk or variety show during his run!?! My memory of him is from the '70s and '80s when I gather drink had begun to affect his life. He was certainly more in the Eugene O'Neill salesman vein by then: I could see him fitting in in Harry Hope's saloon in ICEMAN.
But that fast-talking, smooth-tongued con man made more sense being played by people like Bert Parks, Van Johnson and Robert Preston. (I only saw the latter on film and then Eric McCormack on Broadway.)
Did Dick van Dyke lack the guile? It must've seemed like a good fit in 1980.