Original air date: 09/19/2011 Runtime: 21:34 min. While Barney prepares for his wedding to a mystery bride, he and Ted reminisce about Punchy's wedding; including when Marshall and Lily announced they were having a baby. Meanwhile, Robin considers telling Barney she has feelings for him.
Original air date: 10/17/2011 Runtime: 21:33 min. When Ted goes on a date without researching the girl on the Internet, the gang interferes, showing Kevin that they are too involved in each other's business. Meanwhile, Lily and Marshall come to terms with finding out the sex of their baby.
Original air date: 01/02/2012 Runtime: 21:34 min. After celebrating New Year's Eve, Marshall visits his father's graveside to carry on their tradition of tailgating. Meanwhile, Barney and Ted open a bar called "Puzzles," and Robin is forced to fill in for an inebriated news anchor.
Original air date: 04/09/2012 Runtime: 21:27 min. Ted, Marshall and Barney embark on another "trilogy time," where they get together every three years to watch the Star Wars trilogy and envision what their lives will be like in another three years. Meanwhile Barney and Quinn move in together.
Original air date: 04/16/2012 Runtime: 21:33 min. Just as Ted starts to settle into his new apartment alone, Barney tries to entice him into going out every single night. Meanwhile, Lily has a naughty dream about someone other than Marshall, and Robin finally becomes a famous news anchor.