The sitcom's third series opens with Robin (Cobie Smulders) going to Argentina to help ease the sting of her breakup with Ted (Josh Radnor), and Ted begins seeing a new woman, a dermatologist named Stella (Sarah Chalke). Meanwhile, newlyweds Marshall (Jason Segel) and Lily (Alyson Hannigan) buy their first home together; and perpetually single Barney (Neil Patrick Harris) begins to have real feelings for one woman. Meanwhile, in 2030, Ted's future self (voiced by Bob Saget) begins to reveal tiny details about the titular mother. Memorable guest stars from the series include Enrique Iglesias, Mandy Moore and Britney Spears.
First aired: 2007-09-24