A character named Peggy has been featured in a significant scene, walking out to music by The Kinks, which is being described as an emotional high point for the series Mad Men. However, it is unclear if this scene is from the actual show Mad Men or if it is being referenced in a different context, as there is also mention of a character named Peggy Mitchell from the soap opera EastEnders. The scene is being discussed as a memorable moment, but the specific details and context are not clear.