Where “Michael Phelps vs. a shark” started

Discovery Channel, on TV, Jul 23, 2017. It reached 5 platforms in 3 weeks.

LineageKey steps, 9 of 16. Lines follow time and platform
PrecursorMichael Phelps swimming butterflyDiscovery ChannelFirst postPlatform jumpOwner responseObserved peakPressOwner responseCommercialAfterlifePatient zero