Last week Roger and Don followed the advice to “Go West, young man,” but found out, when they got to Hollywood, they no longer were the young men in town. Attending a Hollywood party, the libation of choice was delivered not in a martini glass, but in a hookah. Just another acknowledgment that this year’s story line is about Don, and his generation, losing power as well as direction and focus. And, on this series, the volatile year of 1968 isn’t over yet…