These days, when a show gets canceled on TV, there's still one last shred of hope: streaming services. It’s possible that Netflix, Amazon or Hulu will ride in to save the day and pick up the show after a social media hash tag campaign. Recently, Amazon was that hero when the cable network SyFy canceled its space drama “The Expanse.” But what goes into the decision to rescue a show? Marketplace Tech host Molly Wood spoke with Todd VanDerWerff, critic at large for Vox, about the business rationale behind these decisions. (07/02/2018)