The Forgetting: A Portrait of Alzheimer's is a two-hour special aimed at helping people better understand and cope with the fearsome disease of Alzheimer's. The cornerstone of the project is a 90-minute documentary based on David Shenk's best-selling book The Forgetting : Alzheimer's: Portrait of an Epidemic. Like Shenk's book, the documentary is a dramatic, compassionate, all-encompassing look at Alzheimer's that weaves together the history and biology of the disease, the intense real-world experiences of Alzheimer's patients and caregivers, and the race to find a cure. The show aired on your local PBS channel Wednesday January 21, 8:00 to 9:30 p.m. and will be re-broadcast June 16, at 8:00 p.m. Check your local listings for repeated airings.