The Paul / Tyson fight on Friday was very popular. Netflix streamed it into more than 60 million households, which is a huge number for any TV event, much less a streaming-only one. Whether the whole thing went well, though, is another matter. The fight itself wasn’t very exciting, and for a large portion of the audience it wouldn’t have mattered if it was — all they could see was laggy, pixelated nothingness. Netflix is clearly bought in to live programming and sports, but is it ready to do...