In a historic move, New York City's St. Patrick's Day parade allows gay groups to march under their own banner.
ABC News correspondent Dan Harris describes how an on-air panic attack led him to discover meditation as a means of reducing stress and focusing on the present.
The New York Times's Mark Mazzetti discusses "The Way of the Knife," his book detailing the CIA's expansive secret military campaigns since 9/11.
David Letterman announces his retirement from "Late Show," and Stephen marvels at the challenge of filling his shoes.
Bette Midler chats about the reissue of her memoir "A View from A Broad," growing up in Hawaii and making a successful career out of being "Divine."
Errol Morris shares insights from "The Unknown Known," his documentary about Donald Rumsfeld and his role in the Iraq War.
A Senate report finds that the CIA misled the public about the effectiveness of enhanced interrogation techniques.
Congressman Tony Cardenas describes his views on undocumented immigrants and his opposition to Chinese chickens.
"The Bully Pulpit" author Doris Kearns Goodwin describes the domestic challenges faced by Presidents Teddy Roosevelt and William Howard Taft.
Stephen strikes terror in the heart of ISIS with a radio broadcast inspired by "War of the Worlds."
Hasbro launches an assault on traditional Scrabble vocabulary by adding thousands of trendy words to the game's official dictionary.
John Malkovich discusses his role in "Cesar Chavez," the importance of labor rights and his natural fragrance.
President Obama commemorates Equal Pay Day in a move that critics dismiss as a political stunt.
Fearing that China will attempt to divide Tibetan Buddhism after his death, the Dalai Lama decides that there is no need for another Dalai Lama.
Twitter co-founder Biz Stone describes his initial hesitance with using hashtags and introduces Stephen to the platform's secret kill switch.
Download the TV Guide app for iPhone, iPad and Android!