The show you now know as the PBS News Hour went on the air 50 years ago. “The Robert MacNeil Report” first appeared on television screens on Oct. 20, 1975, an outgrowth of MacNeil and Jim Lehrer’s unprecedented gavel-to-gavel coverage of the Senate Watergate hearings two years earlier. In the past five decades, our team has covered the biggest stories and interviewed leaders around the world. Here’s a major moment from every year we’ve been on air. | PBS NewsHour