Leno told Oprah Winfrey on Thursday's episode of her talk show that he told "a white lie on the air" when he said he was going to retire because he assumed he would find another job in show business.
He says the experience "was pretty shocking."
NBC has now unseated O'Brien from "Tonight" and moved Leno back to the program he had hosted for 17 years. Leno is scheduled to return to "Tonight" on March 1.
Harpo Productions has asked O'Brien to appear on "The Oprah Winfrey Show," but an appearance hasn't been confirmed.
