i'm david wright for "nightline" inseabrook, new hampshire. >> you do not want to miss the last gop debate before the new hampshire primary this saturday night right here on abc. >>> next, why "playboy" is doing away with the nude centerfold. the iconic playmates flashing to the cover of the last nude issue. >>> later, michael jackson rocking in his journey from motown to off the wall. i want to rock with you [tires spinning] [glass shattering] [screaming] [electricity arching] [pole crashing] the bold nissan rogue, with intuitive all-wheel drive. because winter needs a hero. nissan. innovation that excites. this is a body of proof. proof of less joint pain. and clearer skin. this is my body of proof that i can fight psoriatic arthritis with humira. humira works by targeting and helping to block a specific source of f flammation that contributes to both joint and d in symptoms. it's proven to help relieve pain, stop further joint damame and clear skin in many adults. dodoors have been prescribing humira for 10 years. humira c c lower your ability to fight infections, including tuberculosis