NEW YORK -- ABC says that Diane Sawyer will conduct a two-hour interview with Bruce Jenner that will air on Friday, April 24.

ABC says the former Olympic champion and patriarch of the Kardashian television clan will give a "far-ranging interview." Jenner has not spoken publicly about it but he has been looking more feminine in appearance, and those in his inner circles have not challenged speculation that he is preparing to live as a woman.

There has been talk about a reality show that discusses Jenner's transition, but the E! Entertainment network that carries Kardashian programming has not commented about it. The Sawyer interview has been rumoured for several weeks, but ABC didn't talk about it until Monday.

The interview will air at 9 p.m. on April 24.