Psych does double duty as it wraps up its fifth season as well as the Yin-Yang trilogy with tonight's episode. Shawn and Gus tangle with the homicidal duo once again when they try to track down a woman kidnapped by Yin. But to help locate the elusive killer, they need help from Yang (guest star Ally Sheedy) and form an uneasy alliance. Cybill Shepherd and Mena Suvari also guest star. — Brie Hearn
Read on for previews of Celebrity Rehab with Dr. Drew, A Home for the Holidays, Las Vegas Bowl, Human Target, Top Ten Monks and Top Chef: All-Stars.