HOW I MET YOUR MOTHER
CBS, 8:00 p.m. ET
Last week, the closing seconds teased us with the actual occurrence of the title – if only for a second, and if all we saw of her was from the rear, as she was playing a guitar onstage. But at least it’s a start, and moves the plot forward, however incrementally. Meanwhile, Ted seems intent on moving backwards, by dating a girl so young, she asks him if he fought in Vietnam. She’s played by Ashley Benson, who plays Hanna on ABC Family’s Pretty Little Liars.