Fusion will air its documentary about TV producer/writer/director Sam Simon this Sunday. In August, Fusion announced Simon had given the network exclusive rights to document “the final months of his life” as he battled terminal cancer and his work to promote animal rights.

Rebel with a Cause: The Sam Simon Story will air Sunday at 8 PM. The network – launched in 2013 as a joint venture between Univision Communications Inc. and the Disney/ABC Television Network –  will repeat the docu, directed by Justin Baldoni, throughout next week.

“Our hope is to pay tribute to his life and career while also sparking an important conversation about animal rights and empowering young people to be a catalyst for change,” said Fuson CEO Isaac Lee when the project was announced last summer.   Simon died Sunday at the age of 59, after a two-year battle with terminal colorectal cancer. He chose to give away most of his fortune to save animals from harmful and abusive situations worldwide.

Simon’s TV credits include Taxi, Cheers, The Tracey Ullman Show, The Drew Carey Show and The Simpsons, which he co-created. Among his extensive philanthropic efforts, he founded the Sam Simon Foundation, whose mission is to “save the lives of dogs to enrich the lives of people” and he was a longtime member of the National Board of PETA. Simon also contributed to Captain Paul Watson’s Sea Shepherd Conservation Society, a global marine conservation organization which combats whaling and illegal fishing around the globe. In 2011, Simon also founded The Sam Simon Foundation: Feeding Families, a mobile vegan food bank that currently feeds 400 unemployed families each day.

The documentary is produced in conjunction with Wayfarer Entertainment.