Millions join Prime for Amazon TV shows

San Francisco

AMAZON.COM'S top television shows drew more than 5 million people worldwide to its Prime shopping club by early 2017, according to company documents, revealing for the first time how the retailer's bet on original video is paying off.

The documents also show that Amazon's US audience for all video programming on Prime, including films and TV shows it licenses from other companies, was about 26 million customers.

Amazon has never released figures for its total audience.

The internal documents compare metrics that have never been reported for 19 shows exclusive to Amazon: their cost, their viewership and the number of people they helped lure to Prime.

Known as Prime Originals, the shows account for as much as a quarter of what analysts estimate to be total Prime sign-ups from late 2014 to early 2017, the…