Ken Tucker reviews the HBO series. Sad to say, about what I was expecting. I won’t stay away from it rigorously, but I do worry that it would make me depressed. Getting that era across in all its ass-over-teakettle glory is as impossible as making Elvis seem dangerous nowadays. Better to evoke a more self-aware version of the times than go all movie-Grease nostalgic, of course. But I’m reluctant not only because you can’t always get what you want, you also can’t go home again.