The Western, which seemed to have choked dust on the parched plains of late-night reruns, is making a mini-comeback, says John Ireland, the poker-faced gunfighter who starred in many of the old films. "Time was," said Ireland, "when you'd see a guy on one channel saying, `Put 'em up,' and could change channels and another guy would answer him." But people lost interest in the 1950s cowboy series' such as "Rawhide," "Gunsmoke" and "Wagon Train," when out of the West came the police show. Cops do most of the TV killing of bad guys these days, Ireland said, but the popularity of the miniseries "Lonesome Dove" and a recent movie based on television's "Bonanza" indicate a rebirth is occurring. Ireland, 75, is one of the featured guests at the fourth annual "Riders of the Silver Screen," a three-day celebration this week in Knoxville. Ireland had major roles in "Gunfight at the OK Corral" and "Red River," among others.