Before leaving you with that whistle (you better know the one!), a bit of film trivia.
In 1957 Griffith made his film début, starring in the film A Face in the Crowd. Although he plays a "country boy", this country boy is manipulative and power-hungry, a drifter who becomes a television host and uses his show as a gateway to political power. Co-starring Patricia Neal, Walter Matthau, Tony Franciosa, and Lee Remick (in her film début as well), the film was directed by Elia Kazan and written by Budd Schulberg.
I haven't seen all of A Face in the Crowd, but one of the scenes—the early one where Patricia Neal's journalist visits Griffith's convict in the county jail—is indelibly imprinted on my mind. Griffith could act, a fact that some people who identify him only with the cozy lawman from Maybury might find hard to believe.
Andy Griffith, R.I.P.