The Oprah Winfrey Show (often simply referred to as Oprah or simply just O) is a United States syndicated talk show, hosted and produced by its namesake Oprah Winfrey, and is the highest-rated talk show in American television history.King World press release Retrieved July 3, 2006 It is currently the longest-running daytime television talk show in the United States, having run nationally since September 8, 1986, for over 22 seasons and 3,724 episodes November 21, 2008. The show is renewed through 2011, but in a 2007 interview with Larry King, Oprah said that in 2011, she will not renew her contract, thus ending the show Will Oprah Winfrey End Show in 2011?" TV Guide. November 8, 2008. Retrieved on November 12, 2008.. The show, a production of Harpo Productions, is the last program currently on the air to be distributed by King World (only the name is mentioned in the Friday show's distribution credits), even though the latter company has been absorbed by CBS Television Distribution.

Oprah has been included in Time magazine's shortlist of the best television series of the twentieth century in 1998, and it made the top 50 of TV Guides countdown of the greatest American shows of all timeTop 50 Greatest Shows Of All Time in 2002.