I'll say right up front that I only saw this movie once, when it first aired on ABC in 1988, and I didn't think it was very good then. But it's interesting that the Longarm Adult Western novels were so successful back then that they prompted the making of a TV movie. If the people who made it had actually taken something from the books other than the name, it might have been successful.
But instead they took a great, well-rounded, interesting character, Deputy U.S. Marshal Custis Long, and turned him into an utterly bland, generic TV Western lawman played by John Terlesky, who has the thankless task of breathing some life into the character.
However, there's one scene that's stuck with me for nearly 25 years, and it still makes me laugh. It involves a frontier baseball game and a moment of inspired lunacy. If you've never seen this movie, it's doubtful that you ever will, but just in case, I won't go into detail. If you ever run across it, though, watch for that baseball game. (No DVD, no YouTube clip, not even an image from the movie anywhere on-line that I can find. If you didn't see it the first time, like I did, it might as well not even exist.)