Having earned a political-science degree at Stanford and a journalism master’s from Columbia, the Oakland-born media professional began her broadcast career in the early 1970s with stints at WKTV in Utica and WTVN in Columbus before moving to KDKA-TV in Pittsburgh, where she hosted and produced the Evening Magazine program. After anchoring in Miami, she joined New York’s WPIX as the lead 7:30 p.m.…