Some PBS stations aired a history episode “Washington in the 70s” (link) , somewhat recalling CNN’s, describing life in the Washington area in the decade when I moved away to go to work.
The series covered the last night of the Washington Senators at RFK in 1971 (I almost took a date to that game) where the Senators forfeited their last game to the Yankees while winning when the fans ran onto the field. But the Redskins, hiring George Allen, started to improve, and even won a title in 1972.
The city got some form of home rule, with a city council (with Congressional power of veto) and a mayor.
Culture also improved greatly as the Kennedy Center opened.
The series did cover Watergate a bit, but turned its attention to the tendency of the middle class, including black middle class, to flee to the suburbs. But the Metro opened in 1976, and a stop was deliberately omitted from Georgetown.
The renovation of Union Station and the 1976 bicentennial was covered.
But the occurrence of terrorism, with a series of hostage taking incidents in 1977 involving the Hanfi Muslims (actually the most liberal branch) helped add to a sense that the City was unsafe.