James Andrew Miller, author of the new HBO oral history "Tinderbox," shares what he learned through his interviews with five decades of network executives, stars and producers. HBO created a "whole new pathway for people to experience television," he says. But now it is under tremendous pressure from the likes of Netflix. Miller also discusses the impacts of the AT&T-Time Warner deal and his interviews with media moguls about the pending combination of WarnerMedia and Discovery. Referring to the streaming race, he says "it's a really expensive war" and "not everyone is going to make it."

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