Although network news viewership is shrinking, Channel 9 remains a powerhouse. And Denver has a powerful fondness for the team featured on the KUSA Morning News, a newscast that stretches over two channels and so many hours that it someday may run right into the evening shows. This year it added an extra half-hour at 4:30 a.m. featuring Gregg Moss, who rejoined the fold last year; a savvy business reporter, Moss offers a particularly intelligent way to start the day. And he sticks around when the rest of the crew — avuncular Gary Shapiro, still pixieish Kyle Dyer, sports reporter Susie Wargin and weathercaster Becky Ditchfield — show up to help the rest of Denver get their morning going.