Walters' interview with Robert and Gladys Zimmerman is set to air Monday night on "World News With Diane Sawyer" and "Nightline," and will air Tuesday on "Good Morning America."
The topics of the interview are expected to include Zimmerman's acquittal in the shooting death of Trayvon Martin, the weekend demonstrations that occurred after the verdict and Zimmerman's plans for life after the trial.
The verdict, which was read on Saturday evening, was viewed by more than 10 million people on CNN, MSNBC and Fox News. That audience exceeded the combined viewership of the broadcast networks that evening, which had a combined audience of 9 million.
Zimmerman, who was found not guilty of second-degree murder in the death of teenager Martin, is in the process of suing NBC News, which has admitted fault in deceptively editing a recording of a 911 call in which Zimmerman appeared to state Martin's race unprompted. In fact, Zimmerman was asked about the teenager's ethnicity.
The network fired a reporter and producer, but Zimmerman sued the network in December for defamation.