New York City Mayor Rudolph Giuliani, flanked by New York City firefighters and Port Authority police, delivered a serious opening monologue on NBC’s “Saturday Night Live,” opening that program’s 27th season. His hands clasped before him, the mayor said, in part: “On September 11th, more lives were lost than on any other single day in America’s history, more than Pearl Harbor, and more than D-Day. The men, women and children who were in the World Trade Center came from across the country and from 80 different nations. They were living their lives, and pursuing their dreams and they too are remembered as heroes . . . Our hearts are broken but they are beating, and they are beating stronger than ever. New Yorkers are unified. We will not yield to terrorism. We will not let our decisions be made out of fear. We choose to live our lives in freedom.” After Paul Simon sang “The Boxer,” the show’s executive producer, Lorne Michaels, then asked the mayor, “Can we be funny?” Replied Giuliani” “Why start now?” And then, “Live from New York . . . it’s Saturday Night!