At the premiere of Mad Men Season 3, I talked with Jon Hamm about his not yet having seen Episode 1, and with the cast about how how tightly-guarded the plotlines are. But what everyone -- including Michael Gladis, Rich Sommer and Alison Brie  -- was most excited about was that Mad Men will be parodied on Sesame Street. As if The Simpsons wasn't enough. See what they -- and Matthew Weiner, Vincent Kartheiser, Bryan Batt, Aaron Staton, Robert Morse and Elisabeth Moss -- had to say about that and more.