But according to Elisabeth Moss, who plays Peggy Olson on the series, spilling the "Mad Men" beans can be dangerous.
"It kills [Weiner] when something gets leaked," Moss told Rolling Stone. "The one time iTunes released an episode early, it was like, suicide watch ... It's just that he wants everyone to enjoy the show exactly the way they're supposed to."
"They signed a legal document," Weiner went on to explain. "It's enforcable. We had an issue once and sort of went down that road -- I won't talk about it. Sometimes they don't come back."
Blabbing "Mad Men" details may be a death wish for the cast and crew, but Jon Hamm, who plays the show's antihero Don Draper, says he doesn't understand why that's so shocking.
"I find it interesting that we've become the standard-bearer for this idea of being secretive, and ... I'm a TV fan, I watch a lot of TV shows; I don't see anybody talk about their season at the beginning of the season. No one does," Hamm told reporters at the show's recent press junket. "It's not like they came out on 'Homeland' and said 'Oh yeah, by the way, here's how it's gonna end -- tune in!' And yet, we're the people who are known as the cryptic secret keepers of all time."
For more, check out the April 11, 2013 issue of Rolling Stone, featuring Jon Hamm on the cover.
Season 6 of "Mad Men" premieres on Sun., April 7 at 9 p.m. ET on AMC.