REGINA – Corner Gas creator and star Brent Butt will join the rest of the crew to film their 100th episode Wednesday at the Canada-Saskatchewan Production Studios in Regina. “100 of anything seems like a lot to me,” says Butt. “I tried doing 100 sits ups once and got to about eight or nine and quit. So 100 episodes of a TV show – we’re really proud of that.” The hit comedy, about an odd collection of residents who bond at a gas station in the fictional town of town of Dog River, Sask., wraps up its sixth and final...