Warner Brothers owned the property (the screenplay of "To Have and Have Not") and if Roy Huggins wanted to make a western version of that, he, and the studio, were free to do so. They were also free to use archive footage from other Warner Bros. feature films (which they did many, many times in this TV series) and a lot of footage from "Juarez"is used in this "Cheyenne" episode. And for what it is worth, regrading the reviewer who thinks Hoagy Carmichael played the piano player in this episode, the piano player called 'Professor" was played by Tim Grahame.Yes, the 'Star Dust' man did play the piano in "To Have and Have Not."
Review of Fury at Rio Hondo
