"You Know What You Did" was produced by Tony DiSanto, Adam DiVello, Liz Gateley, Sara Mast, Andrew Perry, Jason Sands, Robyn Schnieders, Sean Travis, Michael "Spike" Van Briesen, and Rick Van Meter. The episode was met with generally favorable reviews from critics, who felt that the changed dynamic between Conrad and Montag was entertaining for television. It was additionally notable for Conrad's delivery of the titular line "You know what you did!" when speaking to Montag, which has since been recognized as an iconic moment from the series.