That was some Mad Men finale, wasn't it? If you haven't seen it yet, please stop reading now, because there was just too much going on for me not to just launch into some discussion.

OK, I'll wait until after the jump to really get into things. But, suffice to say, the end of season three left some characters going down a pretty well-determined path, but others have entered a sort of limbo state, where we don't quite know what their roles will be in season four.

One of the things I love (out of many, many things) about Mad Men is the advertising, business, and social history that serves as a background to much of what goes on in the lives of the characters on the show. For example, Conrad Hilton has been a character on the show this season, hiring Don and Sterling Cooper as an ad agency. I assumed that Matt Weiner and his writers approached the Hilton family and/or the Hilton chain about using him on the show. But that's not what happened.

The Hilton chain actually approached the show.