The Oprah Winfrey Show

No meat, no milk, no animal anything -- Oprah and 378 Harpo staffers go vegan for one week. Lisa Ling goes inside a slaughterhouse (Cargill) to see how meat is made.

Laurie Ferris shares her struggle with her 10-year-old son Zach's violent mental illness. What causes his rage? And Oprah follows up with Brit, who appeared on a 2000 episode, "Explosive Children" as a child struggling with bipolar disorder.

We're looking back at some of the guests we can't forget: The woman whose boyfriend shot her in the face; the dad who left viewers gobsmacked; plus, the winner of Oprah's Big Give with a big surprise!

Bob Greene is here with a groundbreaking challenge that can take 20 years off your looks. Find out how you can look and feel years younger using superfoods and cutting-edge skincare products.

Meet the mom, Kim Noble, with 20 personalities. Then we look back on one of our most unforgettable guests, Truddi Chase, and hear from her daughter, Kari Ainsworth. We talk about dissociative identity disorder and its causes.

Bob Greene and Peter Walsh share tips for a better life, Adam Glassman shows off five winter fashions and Dr. Oz discusses the five numbers that can save your life: blood pressure, waist size, weight, cholesterol and fasting blood sugar.

On the 50th anniversary of the freedom rides, the show honors the 436 brave and determined people who risked their lives to change a nation. Oprah welcomes the 180 surviving members of the 1961 freedom rides.

In 1997, Tina Turner appeared and performed on The Oprah Winfrey Show as part of her Wildest Dreams Tour. Tina talked to Oprah about her childhood, surviving her abusive relationship with Ike Turner and gave viewers a tour of her home in France.