Last week, this show spent time with Cristin Millotti, in flashbacks showing her character’s life and how close it came to intertwining with that of Josh Radnor’s Ted – significant, since she eventually will become the show’s titular mother. But on tonight’s new show, the focus shifts to Ted, who, on the weekend of friend Barney’s wedding, spends the night on the beach with ex-girlfriend, and Barney’s bride-to-be, Robin (Cobie Smulders). But don’t worry: they while away the hours recalling, and ranking, Ted’s other ex-girlfriends.