PASADENA, Calif. (January 7, 2013)—CBS late-night host David Letterman says he sees a psychiatrist once a week, part of his attempt to be the person he once believed he was.

Letterman made the revelation in an extraordinary interview with Oprah Winfrey in which he talked about his feuds with her and Jay Leno, and his own effort to make amends for the affairs that became public three years ago when a man tried to extort him.

The interview, which was done in November, aired Sunday night on Winfrey's OWN network.

The CBS host said his wife has forgiven him for his transgressions and his life is more joyful than ever, but says he hasn't necessarily forgiven himself.

Letterman also called his late-night rival Leno the funniest guy he's ever known.