You will watch American Dad! Season 4 Episode 59 – 1600 Candles online for free episodes with high quality. Online episode guide, American Dad! Season 4 Episode 59 – 1600 Candles 1600 Candles In this Emmy nominated episode, the Smiths’ plans to celebrate Roger’s 1,600th birthday are sidetracked when Steve announces that he’s finally going through puberty. Ever fearful of the thought of a Steve with raging hormones, Stan and Francine try to bypass the pains by having experimental medicine injected into Steve’s head.