Discovery Communications, Inc., home to the Discovery Channel, Animal Planet and other networks, which produced and aired Irwin's programs to a reported global audience of more than 200 million, said it will not show the footage.
Police have said there are no suspicious circumstances in Irwin's death, and no decision has been made about whether a coroner will hold a formal inquest or simply accept the police findings. No formal cause of death has been announced.
Terri Irwin briefly addressed park staff late Tuesday over a public address system.
"She was very choked up. It was a very frail comment," Hornby told The Associated Press Wednesday. "But she wanted to say to the staff how grateful she was for their support and how much it meant to her."
Bob Irwin said he had just spent nearly a month with his son's family on Cape York in tropical northern Australia doing crocodile research.
"Steve was probably the best I had seen him in many years, in his own personal attitude," he said. "He was peaceful. He was not under stress. And he was doing something that he really loved doing. I won't ever forget that three or four weeks."
