Best of Oprah: Oprah's "ultimate viewers" begin an Australian adventure that includes snuggling koalas, attending a beach barbecue with chef Curtis Stone, exploring the Great Barrier Reef and traveling through Tasmania.
Best of Oprah: Oprah's Australian grand finale at the Sydney Opera House stars U2's Bono, actor Hugh Jackman and singer Olivia Newton-John; actress Nicole Kidman and singer Keith Urban give their first interview together.
Best of Oprah: Supermodels Christie Brinkley, Beverly Johnson, Stephanie Seymour, Cheryl Tiegs, Christy Turlington Burns, Elle Macpherson, Veronica Webb and Paulina Porizkova talk about aging, men and modeling.
Best of Oprah: Roseanne Barr returns to the "Oprah" stage as she discusses fame, marriage, sex and incest allegations she made in 1991; John Goodman and the "Roseanne" TV family reminisce about the popular series.
Best of Oprah: Fashion designers Michael Kors, Diane von Fürstenberg and Tory Burch, hairdresser Frédéric Fekkai, makeup artist Bobbi Brown and Oprah's own personal styling team pull off miraculous makeovers.
Best of Oprah: Actors Will Smith, Jada Pinkett Smith and Jamie Foxx, singers Stevie Wonder and Aretha Franklin, athlete Michael Jordan and others participate in a star-studded farewell to "The Oprah Winfrey Show."
All New! In honor of Oprah's birthday, the audience is full of people of all ages who are celebrating their birthdays with her; Oprah talks to Jason Reitman, director of the Golden Globe-winning film "Up in the Air."
All new! Oprah talks about the 150 items from her closet that are going up for auction. Guests include comic Jimmy Fallon and director Lee Daniels; comic Ali Wentworth gets skating, curling and skeleton lessons from Olympic athletes.
Film critic Roger Ebert discusses his battle with throat cancer and the new technology that is giving him his voice back; Oscar nominees Morgan Freeman and Colin Firth; fashion designer turned filmmaker Tom Ford.
Actresses Lisa Kudrow and Brooke Shields and football legend Emmitt Smith trace their family histories; Harvard professor Henry Louis Gates Jr. reveals the outcome of the "beer summit" with Officer Crowley and President Obama.
Singer Janet Jackson discusses the death of her brother Michael, the charges against Dr. Conrad Murray and how Michael's children are coping with the loss of their father; director Tyler Perry ("Why Did I Get Married Too").
In honor of Earth Day, a "green" mom switches families with an admittedly wasteful one to see how the other side lives; makers of Oscar-winning documentary "The Cove" share how they risked their lives to expose a deadly secret.
All New! A groundbreaking announcement and viewer reactions to Oprah's show about the documentary "Waiting for `Superman"'; Education Secretary Arne Duncan and musician John Legend discuss America's school system.
Best of Oprah: Former President George W. Bush discusses his memoir and sits down for his first interview with his parents, former President George H.W. Bush and Barbara Bush; a look inside their Kennebunkport compound.
All new! For the first time, a family reveals its secret 25-year relationship with entertainer Michael Jackson; producer Teddy Riley discusses the posthumous album "Michael"; author Jonathan Franzen; Oprah's 65th book club pick.
All new: Fashion specialist Carson Kressley and journalist Nancy O'Dell introduce 10 finalists in Oprah's search for America's next TV star; children kidnap their workaholic father; rapper Jay-Z, talent judge Simon Cowell and journalist Diane Sawyer.