In my TV History & Appreciation of the ’60s and ’70s class, current events keep intruding, and making me restructure some of my lectures, clips, and historical comparisons. My section on breaking news coverage of the 1970s, for example, used to spend a lot of time on Watergate, but I thought such chapters in that story as, say, the Saturday night massacre, or the indefatigability of reporters Bob Woodward and Carl Bernstein, were going too deeply into the weeds. But now, the thre