This season, they moved the special flashback episode to number three. (tvfanatic.com)
That gives me hope we'll get a full flashback episode for Ethan, which is long overdue in my opinion. (tvfanatic.com)
An all - flashback episode of HIMYM has Barney meeting The Mother, and Bryan Cranston back as Ted's horrible boss with an offer he can definitely refuse. (screenpicks.com)