In the most brilliantly layered episode of TV, perhaps EVER, we learn how the Platinum Rule came about via three stories over three years. Barney with Wendy the Waitress, Lily and Marshall with some neighbors, and Robin with a coworker.
How I Met Your Podcast Ep 4.22 Right Place, Right Time
While the writers try to fool us into thinking this episode is vital in Ted meeting the titular mother, it's actually just a fun discourse on graphs and charts....plus Barney goes for the big 200.
How I Met Your Podcast Ep 5.4 The Sexless Innkeeper
In a fantastic episode, Ted tried to woo the ladies wearing Tweed, but gets labelled the shows title before he achieves his goal. Marshall and Lily are hilariously bad at double dating.
Barney and Ted battle to push the button to blow up the Arcadian; Barney and Robin battle against Ted reuniting with Zoey; Marshall battles against and anticipated stomach poisoning and we get some good dramatic news at the end.