I work pretty hard on the timeline for the Mad Men Episode Guide, making sure I have evidence for what day things happen on. We know that Matt is super-careful about things like that, going so far as to have the weather on specific days match the actual weather report, and adding references to things that happened in the news.
Dark Shadows takes place in the lead-up to Thanksgiving. Day One is a work day, presumably a Friday. On Day One, Bert tells Roger he wants him to set up a dinner for the Manischevitz account, at which Jane should be present.
Next is a weekend; when Betty picks up Sally, Megan says to Sally that she’ll see her in two weeks (pretty normal visitation schedule for the time; I saw my own father every other weekend back then).
Day Three appears to be Monday; Roger gets Ginsberg to come up with ideas for Manischevitz by Friday. This is strong evidence that it’s soon after Bert spoke with Roger; Roger is excited about the opportunity to one-up Pete, so it seems to me that Bert spoke to Roger on Friday and now it’s Roger’s earliest opportunity to get Ginsberg on the case. It wouldn’t make sense for a week to pass between those two conversations, right? On the same day, he calls Jane about dinner; he’s striking while the iron is hot.
Also on Day Three, Megan and Julia discuss Thanksgiving–Julia wants to know what she should bring. So, again, it’s not far away. So, I have Day One as Friday the 11 of November, 1966, Day Two as Sunday the 13th, and Day Three as Monday the 14th.
Now, here’s the problem. When the weekend rolls around, Sally is back with Don and Megan. It’s not two weeks, it’s one week. I tried backing up the first week and assuming a one-week gap, but that screws up the Roger-Ginsberg-Jane timeline. It makes no sense that Bert gives Roger an opportunity that Roger really wants to grab, but he waits a week to set it up.
Also, Sally gets colored pencils from Don on Day One for her family tree project, then she works on the project with Betty, then she’s back at her Dad’s–all before Thanksgiving. Betty then goes back to her weekly Weight Watchers meeting (the second this episode) and they talk about how it’s Thanksgiving week.
The episode takes place from November 11 through 24, 1966. The timeline is fine except for the every-other-week visitation, which is specifically referenced. This is the sort of thing that makes me crazy. And by the way, this is why I think our Episode Guides have real value for hardcore fans; no one else is working this hard on the show who doesn’t actually work there.