AMC is hoping that some quick-to-react fans of "Mad Men" don't spoil some secrets.
The cable network's executives aren't sure how many people snapped up the episode — so far, they haven't seen it streaming online. Some details about the story appeared on the Gawker.com Web site.
AMC asked people who did get the episode to hold back from revealing details about it out of respect for fans who want to be surprised. The episode is scheduled to air Aug. 30.
AMC says it is investigating how the episode went up on iTunes.