Of the two episodes filmed for this failed NBC series only the first, The Boston Kid, was aired, and this was not until 1963 and by CBS. The second episode, The John Wesley Hardin Story, was never shown.
This is fun to watch if you can find it. In the first two minutes you can recognize three actors in small roles who would go on to much greater success - Michael Landon, Lee Van Cleef, and Leonard Nimoy!