Just in time for the final episode, airing this Sundayat 10 p.m., AMC has released the final ‘Mad Men’ promo entitled, ‘Times of Your Life.’ But fans of the iconic show beware: It’s bound to stir up feelings of nostalgia for the show. Watch your favorite characters as they relive the times that have captivated audiences for years (covering everything from love and loss to coming of age and the ruthlessness of the business world) set to the smooth, classic vocals of Paul Anka. It’s a great way to begin your farewells to Jon Hamm, Elisabeth Moss, John Slattery andChristina Hendricks. And if that weren’t enough to carry the season finale’s ratings, AMC’s sister networks (BBC America, WE, IFC and Sundance) will also black out programming while it airs — but who could complain about having more time to watch ‘Mad Men,’ right? After seven seasons of watching the men and women of Madison Avenue navigate life in the advertising world in the ‘60s — from Don’s California hiatus to Peggy’s pregnancy to that infamous lawnmower incident — it’s finally time to say goodbye. But if it’s just too soon, AMC is also airing a marathon of every single episode starting tonight at 6 p.m.