Article continues below advertisementHow Taylor Swift's Idea for the Eras Tour StartedSource: Disney Plus/YouTubeTaylor Swift's 'End of an Era' documentary series offered shocking revelations about the singer's record-breaking Eras Tour.Taylor Swift did not hold anything back in her Disney+ documentary series End of an Era.Debuted on December 12, the Don Argott-directed six-episode docuseries provided a close-up of Swift's journey when she embarked on her record-breaking Eras Tour.