Natalie Jacobson, or "Nat" as we knew her over three decades at WCVB, told her colleagues in mid-July that she would be retiring. She'll be remembered not only for covering so many high-profile events - visits by Queen Elizabeth, Nelson Mandela, and Pope John Paul II, the Blizzard of '78 and the Red Sox' World Series win in 2004 - but for her notorious 1990 interview with then-gubernatorial candidate John Silber.