Why is Shark Week airing another megalodon documentary?

The Washington Post

Megalodon: Fact vs. Fiction, airing Friday night, follows 2013's controversial Megalodon: The Monster Shark Lives and its follow-up the next year, Megalodon: The New Evidence. "In the third look at this killer shark, experts will fact-check and analyze the original fictional special from 2013," says Emily Yahr. "In an era where reality is frequently questioned, the network is being especially careful."