The Kinks, 'You Really Got Me' (Season 5, Episode 11)
The crunchy opening chords of the Kinks' 1964 hit single: Is there a more perfect soundtrack for a new era for Peggy Olson? After being shut out by her fellow (male) copywriters, and humiliated by Don — who throws money at her when all she wants is a little respect — Peggy finally takes charge of her career, accepting a better offer with Cutler, Gleason and Chaough and quitting SCDP. After a surprisingly tender moment with Don, she clears out her office and leaves that world behind. But the small smirk on her face as she steps onto the elevator and that iconic riff kicks in...it says everything.